I like working with the pictures to make a slide show. I can think of so many thing to do with this, both personal and professional. Though, I don't know what site I like the best. I started with BubbleShare and it has a lot of neat things to add to pictures, but I really couldn't find a use for them.
BubbleShare: Share photos - Easy Photo Sharing
Then, I tried Slide and that one was a little better for me.
Again, I can think of a lot of uses, but I don't think I've found the best site for me. Also, I hope my next slide show is much more creative.