http://www.boloxe.com/techblog/2009/09/kpicasa-gallery-0-2-0/

This is a wordpress plugin that allows you to show a picasa web album (all the pictures) in a wordpress blog post or page. When you click on the picture it opens up a lightbox window so you are not taken away from the page. But your pictures live on the Picasa server. Lighter on your site, and you can manage all your photos in one location. Google you are getting more and more of my life, but you make it so easy for people to put together great plugins like this.