X3 Managing Photos and Images - Flickr, Kodak, etc.

I've been using Kodak EasyShare for quite a while. Probably have about 20 albums uploaded, so I wasn't going to bother with Flickr, figuring they are more or less the same kind of thing. But I signed on to take a look and now I'm curious. Think I'll check it out and see how they compare. My sister used Picasa way back when, but I always had trouble with it. Maybe because the whole idea was new to me at that time. Have also messed with photos on geni.com (enthusiam for which, btw, has spread through my family like the flu).