Sitepoint, who is sellling books about web development, javascript, SQL and related stuff, is currently offering five (5) books (PDF only though) for the price of one (or ten for the price of two, etc.). All the money goes to the victims of the Australian Brushfire, so you can both get some good books for a great price and at the same time support a good cause.
But hurry, sale lasts only until friday feb. 13...
http://sitepoint.com
Rich