Lets you add tags to any flickr user, you can then view the tagged users via a whole range of different filters, including view by tag, view tagged users photos,favourites,testimonials,most interesting photos, photos of that user etc, etc

Highlights multifavorited comments on Metafilter.

Easier management for the photos you have in view and favorite groups such as topv-111. Also displays favorite-to-view ratios.

Lets you publish your most popular photos listed (by views/comments/faves/interesting) + also your favourites list by other Flickr users on your PHP enabled website.