from the blog:
overheard recently in #moose
Picasa Web Albums Uploader
Use your Mac to upload photos!
Now there's two ways to upload your photos to Picasa Web Albums -- from directly within iPhoto or using drag-and-drop from a standalone application.
For iPhoto users
The Picasa Web Albums Exporter lives right inside iPhoto. Select photos, choose Export in the File or Share menu, and upload them directly to your web album.
For a standalone application
Use the Picasa Web Albums uploader -- just drag photos from the Finder and click the Upload button.
Tags: picasa , photography , google , photos , iphoto , plugin


Opinions:
Version 1.1 adds support for iPhoto '08. Also the iPhoto export plug-in now can convert keywords in iPhoto to tags in Picasa Web Albums.
Note: the standalone uploader resizes large photos to a width of 1600 by default. If you want to keep your large photos at their original size, you have to change this setting before uploading.
Does no longer work with iPhoto 7 (aka iLife '08)
My only complaint is that the thumbnail table view is not multi-threaded. As it is scrolling through any number of images is pure agony.
It's nice to have a free integrated option other than .mac in iPhoto.
Just wish we had picasa for the mac. :-( Hurry up, google!