If you have an interest in the night sky as I do, you should take a look at the free e-book; What’s Up 2007: 365 Days of Skywatching. If you’re a Slashdot reader you’ve probably already run across this, but if you missed it I would suggest giving it a look.
To be honest, I’m more excited to give this to my 12 year old son to spark his interest a bit more in astronomy. From the little I’ve looked into it so far it seems to be put together very well.
Thank you to Tammy Plotner for making this one available!