Flickr Image Gallery
An Ajax image gallery with fade effects for transitioning of images and populated using JSON data.

imageloopR
Get your favourite Flickr photos in your slideshow.

Invitr
Let’s you to specify one (or more) private pictures to be shown to as many or as little people as you want.

Flickr Importr
A tool for Windows that allows you to upload images to Flickr and automatically add them to groups and sets.

idGettr
Find your Flickr user id number. For some reason, the only way to figure it out is by looking at your RSS stream address.