Is there anything new social media-wise besides Twitter, Foursquare and Facebook?

[4thtennenbaum]

I know there are other things like Digg, StumbleUpon, GoogleWave, LinkedIn and things like that, but is there anything less known that is really new and interesting?

[journeysover]

If you use a search engine such as Google.com, well just "google" social media sites, social sharing sites, social networking sites, etc. and you Will find them. You can also preface those with the word "new".