A Book Apart 2011 Holiday Bundle
If you've got a web nerd to buy for1, I know they'd love this holiday bundle of every A Book Apart web book for $75USD.
I own the first four books and they're just the right length to get you in over your head on a topic with enough knowledge provided so that you can pull your head above water and not sink into the abyss of web nerdery that can so often overwhelm you.