Challenges
- Project Euler
- series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve
- http://projecteuler.net/
- TopCoder
- Online computer programming competitions in the Java, C++, and C# languages. Competitions take place twice a week, and members can win from $25-$300.
- http://www.topcoder.com/
Hack Groups
- OpenHack group for Austin, TX
- OpenHack works by hosting a meetup in your city that gets programmers of any experience level together to code.
- http://openhack.github.com/austin/
- Twitter: https://twitter.com/openhackatx
- Google Groups Mailing List: https://groups.google.com/forum/?fromgroups#!forum/openhack-atx
Web Development
- Browsers are the new IDE for Web Development: http://devworks.thinkdigit.com/Software/Browsers-are-the-new-IDE-for-Web_9995.html
- Pushups For Beginning Programmers http://drills.learncodethehardway.org/
- Code Academy http://www.codecademy.com
- 27 ways to learn to program: http://thenextweb.com/dd/2012/10/21/so-you-want-to-be-a-programmer-huh-heres-25-ways-to-learn-online/
- 20 online coding tools http://www.netmagazine.com/features/top-20-online-coding-tools
Google Chrome programming extensions
- JSON View
- Validate and view JSON documents
- https://chrome.google.com/webstore/detail/jsonview/chklaanhfefbnpoihckbnefhakgolnmc/details
- Dev HTTP Client
- Construct custom HTTP requests, save them permanently, take advantage of variables and contexts.
- https://chrome.google.com/webstore/detail/dev-http-client/aejoelaoggembcahagimdiliamlcdmfm
- HTTP Headers
- Quickly view HTTP Response Headers of a URL.
- https://chrome.google.com/webstore/detail/http-headers/hplfkkmefamockhligfdcfgfnbcdddbg
Assembly
- 6502 assembly language http://skilldrick.github.com/easy6502/
Web Programming
- If This Then That
IP Address geolocation
- IP Info DB
- http://ipinfodb.com
- Free online, API for Country, State, City
- GeoLite Databases from MaxMind
- http://www.maxmind.com/en/geolite
- Free downloadable database for Country, City
- Updates beginning of every month
Names List
- List of countries
- List of worldwide zip codes
Geolocations
- LocaBrowser
- http://www.locabrowser.com
- View a webpage from several different countries from a web browser without using proxies
Books
- 60+ Free programming books for C, C++, C#
Virtual Private Servers
- Ubuntu VPS
- https://www.digitalocean.com/
- Starts at $5/month
- LiNode VPS
- http://www.linode.com/
- Starts at $20/month
- Vultr
- 20 Low End Cloud Server Providers
RegEx
- Online Testing
- Regular Expressions 101
- RegExr
Sounds
- Star Trek Sounds
SMS Providers
- NexMo
- Twilio