Pixelpipe iPhoto Exporter
... Liberate your media with Pixelpipe and get your photos out of iPhoto and to your favourite social networks, blogs, and photosharing services. With support for over 50 different providers, the choice really is yours.
Supported services include: Picasa Web Albums, Flickr, Facebook, Friendfeed, Blogger, Wordpress, Twitter, Kodak, LiveJournal, Photobucket, SmugMug, Tumblr, Webshots…and many more!