Forum Overview :: Gamerasutra :: They provide third-party authentication integration to social networks.

[quote name="Fullofkittens"]They're the guys that let you use your Facebook, Twitter or Google ID to log in to Soundcloud. It's in their interest for everybody to think that people want to log in to your company's site using their Facebook account, because making third-party federated logins work is tricky and you're probably going to want to outsource it to Gigya.[/quote]