MooPix
MooPix lets you access your public Flickr photos without doing PHP, Ruby, or Python situps. What you do with it is your perrogative.

Multicolr Search Lab
With the Multicolr Search Lab, you can browse through 10 million of Flickr’s most interesting Creative Commons images, and find ones that share the same colours. Choose up to 10 colours from our palette of 120 different shades.

Memry
Play a memory game with photos from Flickr.To start playing just type a tag and click ‘play’.

Mosaickr
With mosaickr you can create beautiful mosaics from your flickr pictures, and even print them on posters!
Creating a mosaick is easy and it’s free.

Mosaica
A customizable screensaver with a content generated by users photostreams

Most Interesting Pictures
Enter Flickr username to see their most interesting pictures.

Flickrmap
Put a flash based world map on your own website or blog.

Flickr module for CMS
allows you to integrate your photo albums at flickr.com into you CMS Made Simple based website.

Flickr MiniToolbar
Greasemonkey script or a Firefox extension, that insets a small toolbar above the title of a photo on the photo page.

Flickr Montager
Create photo mosaics using flickr tags.

Mappr
is an interactive environment for exploring place, based on the photos people take.