Climbing Stuff

• How to Lose Weight to Improve Your Climbing - PDF
• Impact Force Calculator - Link
• Tweaks for rockclimbing.com - Download the latest version
• Killfile for rockclimbing.com - Download the latest version

Firefox Stuff

• "C-lookup" Firefox Extension - Download
  Highlight a word or phrase anywhere in a web page, and right click to look it up at Dictionary.com, Thesaurus.com, or Wikipedia. Unlike other lookup extensions, this one works in text boxes, so you can look up words that you've just typed.

Tools

• XML HTTP Request (requires permission)