Yoono raises $4,000,000

Yoono Inc., the social network browser plugin that relaunched in May, has entered public beta. The company has also announced a $4 million extension to their Series A funding round.  Yoono has existed for a number of years but has recently reinvented itself, offering a retooled browser sidebar for Firefox that serves as both a social network feed aggregator and a media-rich content sharing tool. The sidebar can be configured with a number of different widgets that include a Flickr photo viewer and a music player.  Yoono faces competition from a number of other browser plugins like Minggl and from Flock, the web browser that has been tailored for social networks.