Trouble finding wool!

[s0yl3ntgr33n.livejournal.com]

Alright, so maybe i'm just blind, but everywhere i go, I can't find wool yarn. I'm really interested in felting some bags, but can't get over the wool thing. I live in a small town, where we have a Zellers (think walmart) and a crafting store, but everything costs an arm and a leg there. When i drive the hour to venture into the nearby "city" i stop at Michael's but can't see wool. There are like 15% wool yarns, but no 100%.

Do they hide this stuff? What are some brands I should be on the lookout for when i go shopping?

or any suggestions for cheap online wool purchases?