Packt Publishing: ALL books and videos are $5

Normally they have a free book every day, now they've got all ebooks (standard mix of formats) and videos for $5. I just bought two on Mediawiki, the open source software that powers Wikipedia. Packt's books are mainly about open source software, but they have tons on SQL Server and other more closed systems. Well worth digging in to if you're interested in programming.

This is apparently going through the end of the year. Not too shabby.

https://www.packtpub.com/