I like the quilt magazine blogs. All have blogs now. Lots of great info and free patterns posted on those. Connecting Threads has a great blog. Also lots of give a ways. I read Bonnie Hunter's blog:
http://quiltville.blogspot.com/ She posts a lot of free patterns and now has a instant cam that she turns on when she is in her sewing room sewing and interacts with her blog readers while showing lots of her tips and tricks. All the quilt designers and authors have blogs too.