"Cydia Online" is the name of a new website that provides direct links to Cydia packages, repos, and information. The website, created by SwiftCracker, has no official affiliation with Cydia. We think it's only a matter of time before the name is changed, as it's blatantly infringing on saurik's trademark.
That said, the premise behind the so-called Cydia online is pretty cool. It's a fast online searchable vault of apps and tweaks found on Cydia's default repos and even popular third-party repos.
It's probably not going to last much longer under its current name, but the idea is, admittedly, an interesting one...