It seems there is an all Jewish social networking site. Its Koolanoo.com
I must say two of the ads for it seem a bit violent for a Jewish social networking site.
The other one is just a little too edgy (think Carl Jr’s Paris Hilton ad esque). They are definitely going for some viral marketing with their ads.
I don’t think it is necessary to cross a line in order to get people to your site. You should have standards as a company. If I were Jewish, the ads themselves might keep me from joining the site.
Later today, I’ll post about all the “Christian” social networking sites I found out of curiosity.