Where's a good place to shop online for home decor?

We recently purchased a new home, but the walls are so bare! We don't have a ton of money, but want to decorate our house to make it feel more homely. I'm more of a crafty kind of person (but keep in mind I am 23, not 63!) I'm looking at shopping online, but am not finding much luck with Ebay, Craigslist, or google. Any ideas?