Piclens is a really cool plugin for web browsers allowing to see pictures on the enabled sites as you have never seen before; they have released a wordpress plugin, but it only works with version up to 2.3.2, so doing some googling, I found this excellent modified plugin that works with wordpress 2.5, then now this site is Piclens enabled, the only thing you need to do to enjoy it is, install the browser plugin, come to this site or your favorite photo sharing site (the most popular are already supported) and click on the small blue “play” button showed once you put the mouse pointer over the images. enjoy it!