Yeah I agree with you these social network sites are the most famous and the most used sites for now and this is great especially in driving traffic into your site.
Myspace is gone and gone forever! You dont tell people to spick to a network when you cant tell its future. Myspace was around just before facebook. When facebook came in people were told to stick to myspace cos facebook was known. such is life. There is one social network that is making some news in the media recently calls Buzznab and I guess for those who would like to lenjoy multiple radio stations live while still engaging in chatting or games should check out. site is: buzznab.com
There is (or now was) a new social network site, who wanted to compete with Facebook and Twitter. He had putt those things together into a new site: Blytes.nl But his server couldn't handle all the media attention...
San Francisco Chronicle reported that a 2011 newest social networking site claiming to have it all has been been launched and sure heading for a great success could this be the next talked about social networking site that will have everything chilling? it promises a lot and saying members can have access to thousands of live radios and games etc http://www.buzznab.com/ San Francisco Chronicle News : http://finance.sfgate.com/hearst?Account=sfgate&Page=MEDIAVIEWER&GUID=16681116
I have got this new one from the add this button which I had added on my blog, Hacker News. This network site gave me amazing number of hits since last week and its still giving. Believe me, this one is going to be bigger than any local social networks around if handled properly.
I don't know if tumblr.com is new but the site is cool. I rather stick to facebook, twitter and tumblr though.