Online Math (free) textbooks

This great online list of online math textbooks make a great contribution to any student's life. The list was gathered by George Cain, and I'd like to thank him for it on behalf of all students out there.

Read them all for free here.

Free Linux eBooks

This is a cool list of free Linux ebooks. From Firewall to scripting, from server hacks to shell scripts, it's quite a big list.