Knitting Hints and Tips contains (to name a very, very few):

• a guide to yarn types, packaging, conversions and yardage estimates
• finishing tips
• cabling without a cable needle
• double pointed needles with training wheels
• correcting mistakes
• kool-aid dyeing
• magic socks (not for the faint of heart: these are directions for "using double knitting to knit a sock inside a sock")
• joining yarn and dealing with ends
• as well as tips for unusual casting on's, binding off's, etc, etc...

This page may be a bit difficult to read in spots, but it is chock full of knitting gems from People With Experience.