These are my links for October 24th through November 5th:

• LaTeX/Mathematics - Wikibooks, collection of open-content textbooks - One of many concise latex-math guides.
• Air Mouse - Turn your iPod touch or iPhone into a remote for your Win or Mac computer. Not free, but pretty darn awesome.
• LaTeXiT - Make small image or PDF files of latex code, suitable for export into Powerpoint, Keynote or webpages.
• Scanf - A Python C-like scanf tool.
• Poladroid project : the easiest and funniest Polaroid Image Maker - Make your digital photos look like a Polaroid.