Earlier this evening Google announced the integration of three new 'sharing' buttons on their online photo site Picasaweb (which is richly integrated with the free image editor from Google, Picasa).
Embracing Twitter, as well as Google's own Buzz and Blogger, the new buttons let you instantly share individual photos. Notably absent is Facebook, which I suppose, is no surprise.
Picasaweb (or Picasa Web Albums) competes most directly with Yahoo's Flickr, which by any measure is HUGE .... although recent studies have Facebook now exceeding both services in photo (and video) uploads.
Regardless, the social ecosystem of Google just took another step.