Geek? Get some cheap ebooks

There's a deal on at the moment at Hummbebundle, you can pay what you want (starting at $1), but paying more unlocks more books.

The basic bundle contains: -

• Unix in a Nutshell, 4th Edition
• sed & awk, 2nd Edition
• lex and yacc, 2nd Edition
• Learning the bash Shell, 3rd Edition
• Linux Pocket Guide, 3rd Edition

Increasing to $8 gets you: -

• bash Cookbook
• Classic Steel Scripting
• Learning GNU Emacs, 3rd Edition
• Unix Power Tools
• Learning the vi and Vim Editors, 7th Edition
• Bash Pocket Reference, 2nd Edition
• Learning Unix for OS X, 2nd Edition

And then for $15 you further get: -

• Essential System Administration, 3rd Edition
• TCP/IP Network Administration, 3rd Edition
• DNS and BIND, 5th Edition
• Network Troubleshooting Tools

The are all O'Reilly books, DRM free and come as Mobi and ePub.

Useful arsenal of tools and for $15, a real bargain.