Hello!
It`s nice to look at, the welcome page slowed me down. I`m not an expert, but I might think about omitting it. I recently joined a similar network but it seems to be more comments than content.
The thing to remember about Facebook and Myspace is that the PEOPLE make it so. Look at sites like
Squidoo and
Twitter, what can I create on your network?
Onward & Upward!