Cyber Monday

This weekend is known as Black Friday weekend over in the States (it's when a lot of retailers who've been going slowly into the red all year start making money in the run up to Christmas and go into the black), which means they usually have sales on. This includes eBook publishers, notably InformIT(Pearsons), who publish the K and R Book (The C Programming Language) and Effective Java by Joshua Bloch:

http://www.informit.com/promotions/promotion.aspx?promo=139061

O'Reilly's, which do Microsoft as well (they're calling it "Cyber Monday"):

http://shop.oreilly.com/category/deals/cyber-monday.do

And Pragmatic:

http://pragprog.com/news/black-friday-cyber-monday-40-off-sale

And Apress also have a similar deal on Monday:

http://www.apress.com/