social networking web site in a box
Every man and his dog is coming up with an idea for a social networking site.
You can now buy pre-built social networking sites and just go for it.
I, personally, would not get much satisfaction from an out-of-the-box solution - but if you are hungry for riches and have little time to waste - it might make perfect sense to harness pre-existing code for your own purposes.
Here is a list of ’social network’ solutions that i have stumbled accross - (some out of the box , others are more of bespoke design services):
http://www.pearsestreet.com/social-networking-website-design.html