Congratulations on your progress! Learning guitar is a very rewarding experience in my opinion.
Regarding your question about song requests:
You can scroll down the main forum page to see all forum sections. There are also forum sections that are only availible to full access subscribers, with one of them being song requests. Here it is: http://www.guitartricks.com/forum/forumdisplay.php?f=58
Hope that helps!
JJ