www.ravelry.com - A knitting/crocheting haven of people, patterns and incredible ways to connect to others and find the perfect project for your stash!
www.knitty.com - A quarterly online knitting magazine which always has new patterns and ideas. I really look forward to when this comes out!
www.knittinghelp.com - The absolute best place to figure out your knitting questions. They have great videos to show you how to knit almost anything and multiple methods too.
www.knittingpatterncentral.com - This site has thousands of patterns from all over the web and is a great resource for finding a nice knit. It is organized into item subheadings, but just prepare to spend time scanning through patterns.
www.knitpicks.com - This is a great site for awesome needles, useful gear, and great yarn at great prices! Wow, LACE!!
www.etsy.com - This is the place to shop for handmade stuff! Handspun, handdyed, handknit.... it is just the beginning.