Having been sued by Facebook, Power.com plans to countersue and accuse Facebook of trying to monopolize the social networking business.
Power.com has since removed the option to log in to Facebook via its website, but in a statement accused the company of "threatening" it and other businesses:
Facebook is stifling competition by restricting their users and blocking access to Power.com...Facebook has built billions of dollars in market value and has caused irreparable damages to users, Power’s business, and many other companies whom they have similarly threatened.
For its part, Facebook argues that Power.com puts "Facebook user data at risk," and has failed to follow up on promises to go through official channels for accessing Facebook data.
If technology is the business of Silicon Valley, litigation is its beloved hobby -- Rosetta Stone, which recently went public, has filed suit against Google in a long-running intellectual property battle as well.