Some links to sites on the "world wide web" I find more or less useful or interesting.

Penn:

• Science and Technology Wing

Programming:

• Python
• Structure and Interpretation of Computer Programs
• O'Caml
• Haskell

Operating Systems:

• Gentoo Linux
• Linux Kernel Archives

Technology News:

• Slashdot
• Ars Technica
• OS News
• Kernel Trap
• Linux Weekly News