Hey,
Interesting concept ya got there. I like it!

A great innovative social networking tool. I did it myself and shared with my Myspace friends.
Don't see anything to pick your brains upon except you could use another website/blog full of rich content on social networking/web 2.0 . Use that to to link & draw attention to your "My Internet Diploma" sign-up page.
Also try not to repeat keywords to avoid being redundant. That SEO tactic doesn't work anymore.
Keep buildin' content and they will come!
-R.J.
P.S. Try and make some friends on Myspace, Facebook, Xanga, etc. to build a following.
