Late last month, I made a post about FilmLoop, and someone noted that Slide has been doing it for a while as well. Then I went to Nial Kennedy's photos from the Live event and saw a show done via Flickr.
Reminds me of blogging tools - so many companies doing similar things, competing - which is good, right, Ted?
Now, FilmLoop has drag and drop but you have to download a player, Slide also has a player/intergration tool wih a sidebar. The tool you use is the one you like - but I really enjoy the concept of the slideshows over going to personal web sites and having to choose the pictures to view.