You can have any of those photos printed as a modest 8 x 10-inch portrait or as a much larger 20 x 30-inch wall art. And, like we've mentioned before, you can opt for a wrap-around canvas print if you think frames would ruin the beauty of exceptional works, such as one of NASA Goddard's images of the sky and celestial bodies. Of course, having Flickr blow up a picture that means something to you personally will always be the best choice. But if you find yourself lacking in artistic talent or decent camera equipment, this beats buying mass-produced prints from the mall.

[Image credit: Lars Kristian Flem/Flickr (frame), NASA Goddard/Flickr (Blue Marble)]