Comcast Buys Networking Site Plaxo

Plaxo Joins Fancast, Fandango, thePlatform in Cable Operator’s Web Portfolio

Cable MSO Comcast beefed up its online services by agreeing to buy networking site Plaxo for $170 million.

Mountain View, Calif.-based Plaxo facilitates sharing of user contact information and photos, and it has 50,000 users. The company is closely held and funded by venture-capital investors.

Comcast has been diversifying into Web-based businesses with earlier acquisitions of video entertainment site Fancast, movie site Fandango and video-publishing company thePlatform.