Just wanted to let everyone know that we've added support for Furl and StumbleUpon. Unfortunately, SU doesn't offer RSS feeds (which is lame), so you'll only be able to link to your SU stuff in your Where to Find Me Online list (and badge). Thanks to Stewart Harris for suggesting those two.

Furl and StumbleUpon bring the number of sites we support by default to 67. We still support adding unlimited custom sites.