Create Online Slideshows with Viewbook

Viewbook (formerly Slidez) lets you create photo slideshows to share with others or embed in your site -- perfect for photographers, designers, and anyone else with images to show off.

I found the site very easy to use: Just upload your photos using the provided batch-loader tool, then build a new presentation. You can drag and drop photos from your collection to the presentation, arranging them in whatever order you prefer, then tweak options like the background color and location of thumbnails. When you're done, you can e-mail the presentation to others or add it directly to your site. XML feeds are also available. The presentations themselves look simple but elegant, and can run automatically or with manual clicks to skip from one photo to the next.

If you're looking for something a little more stylish than Flickr for showing off your work, give Viewbook a look.