Slideroll is at the easy end a slideshow creation tool, but its output is much more of the video format. Images are uploaded from your computer or imported from flickr, and added to a timeline. Each image can have Ken Burns like effects- creating a start and end point. You can add captions to each image, and also choose from collection of music from the built in library.

The free Video Creator offers a way to turn your sliderolls into MPEG video for your won medie editing or uploading to YouTube

If you pay for a Pro account, you get more features, such as the ability to generate larger videos (the free version is limited to 360x240), upload your own mp3 audio, and export options.