Wordpress plugin for Picasa Web Albums: mPicasaIntegration

mPicasaIntegration is a plugin for Wordpress that allows images from Picasa Web Albums to be included in Wordpress blogs, either inline within the blog posts, or as a gallery.

The author markezz explains:

This plugin requires the feed for each album, that should be integrated. It fetches the feed and saves everything into its own mysql-tables. (They are auto-generated - so no need to install.) When there’s a ‘request’ for an image the plugin grabs it (thumbnail 160×160 fullsize or scaled 640x?) and saves a copy in a cache folder. So we don’t touch the ‘terms of use’ of the picasaweb service since we don’t do hotlinking. Once it has the feed URL, there's an autoupdate function that checks for changes on the picasaweb album and synchronizes this with the locally saved data. Your image titles and descriptions given in picasaweb are used, too. Optionally you can activate ajax-rating (with IP check against double voting) and comments. The comments are spam-protected by a simple email validation (not really applicable) and a captcha (non-image) code.

For Wordpress users it's a familiar download and copy to the plugins folders, after which the plugin can be activated from the Admin Panel.  You also need to ensure that the cache folder is writable.

Albums and individual images are added to pages by a particular tag syntax.  The plugin reads the RSS feed from Picasa Web Albums in order to find the photos available.

The plugin was launched on 11 Sept 2006, and has been regularly updated over the past three weeks to reach a fairly stable 1.0 release.