Wondering if anyone has thought of any revenue streams to use once a site is developed and has a good userbase/visitors?

Yep several

lol...like to expand on that?

Not quite yet :)

Give me time to test them all ;)

Here is the first.

http://community.jcow.net/forums/viewthread/1321

Another is www.projectwonderful.com - waiting for approval for my social forum and ill test the code, see if it works - good thing about PW is you can have 5 ad spaces on your site - thats one for newsfeed, one for blogs and so on :)