I use Picasa with Flickr; as far as I can tell Picasa is for your hard disk, with some uploading features, and Flickr is web based. But they are both brilliant and WAY ahead of being a mere e-shoebox. Picasa finds all the pictures on your hard disk, which seemed a bit "so what?" to me until I tried it and it uncovered things I'd completely forgotten about due to my own untidy filing, and it has a really nice interface and really great enhancing tools. Meanwhile Flickr is really fun if you are interested in sharing photos, as the tagging aspect not only allows you to organise your own, but also puts you in touch with likeminded others. I really like guitars and phones, and I can use the tags to group my own photos as well as find other people's shots. You can also drag thumbnails from Picasa to Flickr's uploader, which makes publishing photos really easy. And Picasa can link to "Hello", which is a very very cool chat/photo sharing/IM type thing. My Flickr galleries are at http://www.flickr.com/photos/jamesdavies/.

Thanks, Jim - interesting stuff!