Flicker Splash - Create slideshows, mosaics, postcards, filmstrips. etc.

Woophy - a photosharing component of Flickr which searches for photos by geographic location

Delivr.net- uses photos from flickr to create greeting and e-cards

Flickr Storm-Allows you to search Flickr for pictures and put your collection in a "tray" so that you can either link to them, or return to them as needed. It has choices to search according to Creative Commons license.

Big Huge Labs - Use your flickr photos to create magazine covers, cards, etc.