Slideoo
Slideoo is a new web app for Flickr users that lets you create horizontal streaming slideshows of your Flickr photos. You can specify the albums from which you’d like Slideoo to pull photos, photo width, and the number of photos to be included in the show.

Picsviewr
Picsviewr provides a wide variety of slideshows (currently 7) for viewing your Flickr photos with more flexibility. Every Flickr user has a slideshow here. There is no need to create an account or configure anything and your preferences are saved.

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

Flickr Slideshow Generator
Flickr Slideshow Generator allows you to generate the HTML necessary to embed a custom Flickr Slideshow in your page or blog.

imageloopR
Get your favourite Flickr photos in your slideshow.

flickrSLiDR
Easily embed the classic flickr slideshows on your website or blog.

FlickrSavr
Mac app that downloads images based on the criteria specified and creates a slideshow of images and titles.

Embedded Flickr Slideshows
All that’s needed is a bit of code to embed them within your website to give your readers something dynamic.

Flickr Screensaver
Turns your computer into a slideshow of Flickr photos when you’re not using it.