Source
Books
http://www.introprogramming.info/intro-csharp-book/
http://www.introprogramming.info/intro-java-book/
http://stackoverflow.com/questions/194812/list-of-freely-available-programming-books/392926#392926
http://jsbooks.revolunet.com/
http://programming-motherfucker.com/become.html
http://www.hongkiat.com/blog/20-best-websites-to-download-free-e-books/
http://www.ebooksocean.com/cgi-sys/suspendedpage.cgi
http://bookos.org/
http://booksc.org/
http://gen.lib.rus.ec/
Cheat sheets
- CSS 2 – http://www.veign.com/downloads/guides/qrg0007.pdf
http://www.veign.com/downloads/guides/qrg0008.pdf
- JavaScript – http://www.addedbytes.com/download/javascript-cheat-sheet-v1/pdf/
http://www.visibone.com/regular-expressions/ - jQuery – http://woorkup.com/wp-content/uploads/2011/12/jQuery-17-Visual-Cheat-Sheet1.pdf
- MySQL – http://www.addedbytes.com/download/mysql-cheat-sheet-v1/pdf/
- XSS – http://ha.ckers.org/xss.html
On-line courses
http://www.homeandlearn.co.uk/php/php.html
English
http://www.sourcecodeonline.com/
Bulgarian
http://www.networkedblogs.com/panorama
http://www.introprogramming.info/intro-csharp-book/
http://www.devbg.org/dotnetbook/Nakov-Programming-.NET-Framework-Book-Volume-1-ver-1.03.html
http://www.kursove-uroci-knigi-obuchenie-programirane-web-design-csharp.info/
http://todormitev.wordpress.com
http://veselinaraykova.wordpress.com
HTML
http://www.addedbytes.com/download/html-cheat-sheet-v1/pdf/
https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/HTML5_element_list
CSS 2
http://www.veign.com/downloads/guides/qrg0007.pdf http://www.veign.com/downloads/guides/qrg0008.pdf )
JavaScript
http://www.addedbytes.com/download/javascript-cheat-sheet-v1/pdf/ http://www.visibone.com/regular-expressions/
jQuery
http://woorkup.com/wp-content/uploads/2011/12/jQuery-17-Visual-Cheat-Sheet1.pdf
MySQL
http://www.addedbytes.com/download/mysql-cheat-sheet-v1/pdf/
XSS
Developer Profile
http://code.google.com/intl/bg-BG/
Bulgarian
http://www.internetpolyglot.com
FIND JOB
http://career.fmi.uni-sofia.bg
http://www.nbu.bg/index.php?I=264