Helps in puc programing

http://www.best-microcontroller-projects.com/pic-projects.html

http://www.edaboard.com/ftopic236060.html

http://www.electro-tech-online.com/micro-controllers/42353-new-pic18f4520.html

http://www.8051projects.net/forum-t22896.html

http://en.pudn.com/download1.html

http://www.edaboard.com/ftopic236060.html