WEBS (yarn.com) Gift Cards
Every knitter knows that the one online store that has it all is WEBS. All of the most gorgeous yarn as well as books, needles, beads, you name it! It's bound to have everything you're looking for and more. I basically wind up buying from the store several times a year (since we only have one tiny local yarn shop). For the experienced knitter/crocheter, you can't go wrong with a gift card like this!