Flickr certainly has a lot of features to look at. I've posted pictures to its web site as well--search People for Fantasy Book Lover or just click this link--to see all my digital photos I've added to Flickr's site. Many of the photos are even geotagged. There is just so much fun you can have with Flickr and so much to learn here which PLCMC's post shows.
One thing I noted, Flickr's Blogging tool worked better at putting a picture from Flickr into my blog and Blogger's Add Image Tool. Also, in the process of creating my Flickr account, I now have a yahoo account under my blog name.