Web 2.0 is a concept that encompasses a recent collection of innovations that have appeared on the World Wide Web. See http://www.educause.edu/apps/er/erm06/erm0621.asp?bhcp=1 for an analysis.
And see http://www.listible.com/list/complete-list-of-web-2-0-products-and-services for a list of 223 Web 2.0 resource.
For this post, I’m trying out flickr’s (no. 2 on the list; wikipedia is no. 1) direct photo blogging interface. 🙂
Quite nifty, but I had to do a few minor modifications to get the features I want. For instance, wordpress’ ‘write post’ interface automatically converts URLs to links when entered, but flickr’s direct photo blogging interface doesn’t.