Computer Science

Learn to code for free, selecting only the programming languages that you need, based on what you want to develop. Massive use of open-source libraries and code snippets will save you time, and speed the learning curve.
- Pandas-Python library
- Beautiful Soup-Python Library
REST Assured
Ruby on Rails

Platform Development
AWS Developers
- Alexa

White Boards

IT Skills
Cisco CCNA
Google Tools
Big Data

Web Design
- AngularJS
- React.js
- Node.js
Shopping Crats

Apache Kafka

Mobile Apps
Google Flutter
React Native

Game Design
Unreal Engine
Unreal Engine Blueprints
Mobile Games
Character Design
Figure Drawing
Virtual Reality

- Autodesk Maya
- in game payments, in game advertising

Website Design

Offer your visitors a single purpose, whether to sell something, to educate or to entertain. The second goal is to guide the user through that experience. Therefore, skip the flash introduction, avoid blinking buttons, and cut out the clutter of words. Good website design is the same thing as good page design, like you see in a magazine. Basically, page layout can be restricted to a header, a two or three-column main body, and a footer. Menu choices should highlight your main offerings, and make it easy for your viewers to find the rest of your site.

As the field of website design expands, developers have become responsible for many areas, including writing content, graphics, template layout, and online marketing. In addition, web developers may handle technical, back-end problems for the site.

Some of the design skills for making websites do not change much over time, but other critical areas, including market research, search engine optimization, and conversion optimization, are constantly shifting as new tools become available. Browse the following split-screen example pages from w3schools.com, where you can see changes that you make to your page in real time. Following each example set, try taking the 20-question quiz on the same subject. When you've finished reviewing your results, browse the reference pages, and save all links as a resource, for when you are making your own site.

Success is governed by two main factors, visitor traffic and sales conversions. How many of the right people can you attract to your site, and how many of those people can you persuade to take the action that you want them to take? Not only can you practice making your own websites to earn money, but if you focus your talents, you can find part-time employment designing websites for small businesses and individuals. A good portfolio often is the deciding factor in getting a job. Students interested in graphic design programs should take basic courses in studio art, computerized design, commercial graphics, or website design.


HTML5 Test
Bootstrap Test
HTML5 Introduction
HTML Examples
HTML tutorial HTML Reference

CSS Style Sheets

CSS Test
CSS Examples
CSS Tutorial, CSS3
CSS Reference

JavaScript Tutorial

JavaScript Test
jQuery Test
JavaScript Examples
JavaScript Tutorial

php programming

PHP Test
php Tutorial
php Reference
XML Test
AJAX Examples

ASP.NET programming

ASP Test
ASP.NET Examples
ASP.NET Reference
ASP.NET Tutorial

SQL database calls

SQL Test
SQL Tutorial

Copywriting, Blogs
Articles, XML, API's
Elements of Style
Google Trends
Mobile Ads, responsive design

Android, iOS Apps

Android Design Style, building blocks, downloads, and video.

Android Development Training, API Guides, a quick reference, and samples.

Google Play Google Play is an easy way to distribute your Android Apps. Register, upload, and publish your app, so Android users can rate and add comments.

Google Apps Marketplace Google Apps already has 40 million users and an additional 5,000 companies a day are signing up.

Chrome Web Store The Chrome Web Store lets you publish apps and games for 200+ million Google Chrome users.

Web In-App Payments Use Google In-App Payments to sell digital and virtual goods within a web application.

Google Play In-App Billing Google Play In-App Billing allows you to sell digital content, including downloadable content such as media files or photos, and virtual content such as game levels or access.

Modern programming is becoming less about knowing how to program, and more about sourcing code snippets, and accessing software libraries. Google recently opened their Google Apps and API's to developers.

Cloud Hosting

Google hosting, with a learning curve at first but then reasonably-priced, scalable stable hosting. likely better uptime, loading speed worldwide, and resources.

Google Cloud Hosting Prices

Google Cloud Hosting

Google Cloud Hosting Trial

Datasets and APIs

Wikimedia API

Yelp, TripAdvisor, city-data - reviews, visitor content (yelp API), tie-in with hotels, restaurants

and DataSets from US Govt, as well as Govt APIs
Indeed, Monster.com APIs to my own database

Yelp, TripAdvisor, city -data - reviews, visitor content (yelp API), tie -in with hotels, restaurants
YouTube API to my own database

* youtube API and convert audio to mp3, then use Google speech to text, or DragonDictate, to turn into text, which due to errors in translation will be unique.

Google dataset search

Kaggle datasets - Large free data, lots of sentences as well as organized fields.

The US government has literally thousands of free datasets to download which can be used commercially without a license.

When writing PHP, or any programming language for that matter, you can turn to Google or StackOverflow with specific questions if you are familiar enough with the topic you are working on to be able to verbalize your question. http://www.bls.gov/ooh/computer-and-information-technology/home.htm

HTML validate

e-Commerce Sites
Free Datasets
RSS Feed-Sources
Page Rank, Keyword Lists
Keyword Density, Incoming Links
Search Engine
Open Directory
Adsense, Analytics, Adwords

The following test has 10 questions, to review your knowledge of HTML, CSS, and basic web page design concepts:

Website Design - Test 1

Color and Images

There are many publishing and blogging platforms around today, like Word Press, which mean that almost anyone can publish online within minutes. Website design is a new field, and it's constantly changing as cloud programming and open source enables new design software.

Live Color Palette
Stock Photography
GIF Animation

Domain Name Registration and Renewals

By December 2009, there were 192 million domain names registered. A large fraction of them are in the .com TLD, which as of March 15, 2010, had seen 84 million domain names in use, including 11.9 million online business and e-commerce sites, 4.3 million entertainment sites, 3.1 million finance related sites, and 1.8 million sports sites.

Domain Names
Website Hosting
Free Blog

The right to use a domain name is delegated by domain name registrars. In addition to ICANN, each top-level domain (TLD) is maintained and serviced technically by an administrative organization operating a registry. The domain registry is responsible for maintaining the database of names registered within the TLD it administers. The registry receives registration information from each domain name registrar authorized to assign names in the corresponding TLD and publishes the information via the 'whois' protocol. Registrars charge a yearly fee for the service of delegating a domain name to a user and providing a default set of name servers. GoDaddy is a popular discount registrar, charging about $10/year to register a domain name. For hosting, you can try BlueHost, which we have had good luck with over the past year.

Content Writing

- WordPress Themes & Plug-ins
- The THESIS Theme
- Color Palette
- eBooks & Kindle
- Audiobooks
- Authorship
- Blogging
- Copywriting
- Dramatic Tension
- Personal Branding
- Public Domain Content

Images & Copyright Law

- iStockPhoto
- Flickr Creative Commons
- Digital Photography
- Sell Stock Photography
- Sell Stock Photos
- iStockPhoto Affiliate Program
- Photoshop
- Image size, clarity
- Google image search, tags
- Backlinks

Content & Programming Outsourcing

- Elance
- Odesk
- 99Designs
- SpeechPad
- Virtual Staff Finder
- Open Source


- 3D Animation
- Audio Files, .wav, mp3
- Flash Animation
- Java Applets
- Video Production
- YouTube Marketing

Free Website Tools

For layout, just use one of the many free template sites found via a Google search. A live color wheel and color lab can be found at Visibone.com, and graphics work can be done on the Free Photoshop Trial offered by Adobe. Learn more from the Photoshop Tutor.


Network Security

Network security is a complex and constantly evolving field. Practitioners must stay on top of new threats and solutions and be proactive in assessing risk and protecting their networks. The first step to understanding network security is to become acquainted with the actual threats posed to a network. Without a realistic idea of what threats might affect your systems, you be unable to effectively protect them. It is also critical that you acquire basic understanding of the techniques used by both security professionals and those who would seek to compromise your network’s security.

The Security Architecture and Models domain of the Common Body of Knowledge embodies the study of formal models for design and evaluation of systems needed for the highest levels of information security, including those that protect national secrets and other government property. The trusted computing base, or TCB, is the portion of a computer system that contains all elements of the system responsible for supporting the security policy and supporting the isolation of objects on which the protection is based. Included are mechanisms, properties, and concepts that are required for a formal evaluation prior to being used to protect resources and information.

Several evolving models of evaluation and assurance cover various aspects of confidentiality, integrity, and availability. TCSEC, otherwise known as the Orange Book, is primarily concerned with confidentiality and is based on the Bell-LaPadula model. ITSEC adds concerns about integrity and availability. The Canadian Criteria (CTCPEC) advances the work of TCSEC and ITSEC.

Access controls differentiate between identifying users of a system and authenticating them. This is done using discretionary means where an information owner decides who obtains access rights, mandatory means where the system decides access rights based on classifications and clearance, and role-based means that group people with a similar need for access together and tie access rights to the role people are assigned. Problems with passwords have led to the development of alternatives, such as tokens using one-time passwords and smart cards that use cryptography to prove a person’s identity.

Potential Threats

DoS attacks are among the most common attacks on the Internet. They are easy to perform, do not require a great deal of sophistication on the part of the perpetrator, and can have devastating effects on the target system. Only virus attacks are more common. (And, in some cases, the virus can be the source of the DoS attack.)

Clearly, there are a number of ways to attack a target system: by Denial of Service, virus/worm, Trojan horse, buffer overflow attacks, and spyware. Each type of attack comes in many distinct variations. It should be obvious by this point that securing your system is absolutely critical. In the upcoming exercises, you will try out the antivirus programs by Norton and McAffee. There are so many ways for a hacker to attack a system that securing your system can be a rather complex task. Chapter 6 will deal with specific methods whereby you can secure your system.

Both Trojan horses and spyware pose significant dangers to your network. Trojan horses and viruses frequently overlap (i.e., a virus may install a Trojan horse). Spyware can compromise security by revealing details of your system or confidential data on the system. Adware is mostly a nuisance rather than a direct security threat. However as your computer becomes infected with more adware, such programs can eventually drain your system’s resources until your system becomes completely unusable.

The MITM attack is more difficult to interdict, since the machine in use may be trusted or commonly known keys in operating system distributions are not changed. However, strong authentication methods can be successful defeating the MITM attack. Reverse DNS look-up is not totally foolproof in ensuring the validity of source IP addresses, and it may be time-consuming. Reverse path forwarding (“Source Address Validation” in the RFC 1812 terminology) is faster because it involves a check of the local forwarding and/or route tables. It is prone to errors, however, due to asymmetrical paths in internetworks, as well as the vast quantity of public IP addresses that will map to the default route of any route table.


Identification and authentication techniques sometimes use biometric information to add further confidence that users are legitimate when attempting physical or logical access to system resources. Single sign-on and associated technologies and protocols aim to reduce the proliferation of IDs and passwords to better control the security of access control mechanisms both within and outside the organization. Industry alliances, such as the Liberty Alliance, are moving toward federated identities that permit single sign-on or reduced sign-on for e-commerce users.

Cryptography relies on two basic methods: transposition and substitution. With transposition, ciphertext is created by scrambling a message based on a shared secret key. In substitution, letters are exchanged with other letters based on a substitution pattern known by both the sender and receiver. The strength of a cryptosystem rests in the size and means used to protect cryptographic keys; in general, the longer the key, the harder it is to break the encryption. The same key can be used to both encrypt and decrypt information and is called a symmetric key, or different keys can be used for encryption and decryption and are called asymmetric keys.

Digital signatures are used in asymmetric key cryptography to protect a message’s content from disclosure, prove the integrity of a message upon receipt, and verify that the sender of the message is indeed who he or she claims to be. Digital signature technology relies on a Public Key Infrastructure for implementation and is at the heart of many commercial products that are used in modern electronic commerce.

Virtual private networks (VPN)

Virtual private networks (VPN) are secure connections over the Internet that enable remote users and sites to connect to a central network. You can use PPTP, L2TP, or IPSec to create a VPN. IPSec is considered the most secure of the three. Administrators creating a VPN protocol should consider how the packets are encrypted, what sort of authentication is used, and whether the current hardware and software supports that technology. The protocols used by many common attacks are ICMP, UDP, and TCP. IP address spoofing is a serious threat, and although there are various techniques for avoidance, including reverse path forwarding, route filtering, and reverse DNS look-up exist, none are foolproof by themselves. Used in combination with other firewall methods, such as ignoring ICMP echo requests sent to broadcast addresses, it may reduce the impact of DoS attacks in which IP address spoofing is prevalent.

Each category of firewall has its own unique set of features and functionality, and you must perform a careful analysis to determine which firewall is needed in your environment. Personal firewalls are needed even in an environment where an enterprise firewall is installed, since they protect a computer from internal attacks. One economical personal firewall is available on any Windows XP system. It provides incoming protection and should be used if no other firewall will be installed on the host computer. Other personal firewalls, such as Zone Alarm, provide enhanced functionality that goes beyond the capabilities of the Windows Firewall.

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