Flickr's Retrievr

I experimented with the third party application entitled "retrievr". This application allows you to draw / sketch an image of what you are looking for, and as you add to the sketch, images that seem similar to your sketch are pulled up for you to view. I, apparently, am not a very skilled artist. I tried a couple of times to draw a dog, but the images that were pulled up were of birds, and even some completely weird cartoon alien-type image: Picasso, I am not :) Finally, my efforts did result in a few dog images (though again, they were also mostly cartoon-like in nature). I had a lot of fun experimenting with this. I think it would be helpful for finding images that have very basic shapes and forms, because I found the drawing utensils to not be especially strong in terms of their precision and ability to represent details.