From a post on lifehacker I saw that Picasa had labeling/tags (which I didn’t know existed and ended up buying Photoshop Album to make up for). However, the next post pointed me to Windows Live Photo Gallery, which doesn’t have quite as much polish as Picasa but makes labeling pictures part of the UI instead of a secondary feature. This Windows Life software is pretty nice, and made this blog post (if nothing goes wrong!).
Now I have to tag all of my pictures again :/