Google has acquired Picasa, a Pasadena, Calif.-based digital photography company, in a move aimed at further cementing its relationship with consumers. Financial terms of the deal weren't disclosed. Picasa develops and sells software that lets users to organize and share digital photographs. Besides its eponymous photo organization product, which retails for $29, the company also publishes a free application called Hello. Hello allows users to browse photos in tandem through a peer-to-peer instant messaging-style interface. Both are available in Windows versions only.