Pat Sloan has one I like.
http://blog.patsloan.com/ My favorite is The Missouri Star Quilt Company As mentioned by Tiggersmom. Jenny Doan of Missouri Star has tons of videos for quick and easy quilts.
http://quiltingtutorials.com/
Connecting Threads is an online quit shop (fantastic prices) and they have a blog. I spend way to much in this online store.
http://www.connectingthreads.com/