Does Blogging + social networking sound like something we’ve heard before? It seems familiar but at the moment I can’t put my finger on the killer app that has merged the two successfully. Yahoo is hoping on March 29 that they can make a splash in both areas.

Yahoo Inc. is preparing to introduce a new service that blends several of its Web site’s popular features with two of the Internet’s fastest growing activities - blogging and social networking. The hybrid service, called “Yahoo 360,” won’t be available until March 29.

I would say the link blog + social networking goes to Stumbleupon which I’ve been using for over a year now and find quite useful, but it will be interesting to see what Yahoo has come up with on this front. I haven’t found much practical use for social networking sites like Ryze, Friendster and Orkut.

Thanks Dave Winer for the link on the Yahoo 360 gig.