Now that Zooomr's made it out with a fully fledged API in their latest release, I've restored the Zooomr plugin to the services list in PictureSync for Mac [Download]. Just click Window>Accounts>+ and it'll appear (or choose Help>Check for updates if you already have a Zooomr account in your list).

The Zooomr plug-in supports location, updating, and links (that's the last icon in the information drawer). Kudos go to Kris to instantaneously fixing some bugs in the API methods!

Not to be left out, a new build of PictureSync for Windows Alpha [Download] has been released also with support for Zooomr, plus Facebook and Fotki. (No further services are likely to be added until the next milestone—sorry!)