PicLens

I am pretty picky about the plug-ins and extensions I add to my browser but PicLens is fantastic. It supports Windows and Mac browsers and if you are an iTunes user, think of it as "CoverFlow" for your browser.

Many popular websites are supported, including; Flickr, Photobucket, Picasa Web Albums, Fotki, FotoTime, deviantART, Smugmug, Facebook, MySpace, Bebo, Hi5, Friendster, Google Images, Yahoo Images and YouTube.

Watch the demo to learn more about it and if you are interested you can get the software for free at PicLens.

Enjoy!