youmeo aggregates social networking accounts for its members, provides chat, group discussions and search across its membership directory by interest and profile characteristics (gender, sexual orientation, religion, etc.) It is still in “beta” (testing to get the bugs out).
The site collects postings and updates from Twitter, bebo, last.fm, MySpace, Tumblr, hi5, Friendster, LinkedIn, Plurk, Plaxo, [...]

We haven’t finished our review of imeem, but you can beat us to the punch by entering your review in Comments!

We haven’t finished our review of FunPiper yet, but don’t let that stop you. Be the first to review this Indian event planning and social networking site in Comments!

We haven’t finished our review of Yahoo360 yet, but don’t let that stop you. Be the first to review the site in Comments!

 
In the socially connected world, there is a new challenge in finding professional help: How do you check what people have said about their work in the past and find out how many people follow them on various social networks, which may be an indication of their competence? Twellow, a directory of “people who matter,” is [...]

We haven’t finished our review of VKontakte, “In Contact” in Russian, but that shouldn’t stop you from adding your own in Comments right now!

We haven’t finished our review of Strands, but that shouldn’t stop you from adding your own in Comments right now!

Piczo is a photo-sharing, music and social site for teens. Having begun as a photo-sharing site, Piczo gained early traction in Canada, which still accounts for a large percentage of members, and other global communities. In recent years, Piczo has added blogging, video-sharing, music-sharing and games that engage approximately 10 million visitors a month. The [...]

 
Xanaga has grown from a blog provider into a robust social networking site with photo-, video- and music-sharing, activity tracking (which Xanga calls a “Pulse”) and ability to list and subscribe to friends’ feeds. Because Xanga promotes blog content on its home page, it is one of the easiest places on the Web to build [...]