I think we all love historical quilts and this site by Barbara Brackman is great and just filled with information. The post about the Mason quilts is very interesting, you should play the video about the appraisal of that quilt and the owner tells the story about Sherman's army.
Charise Creates has a beautiful vintage BOM . Just take a look at her beautiful blocks! Love them. Also, her tutorials are so pretty, those potholders are too much. If you're a paper piecer, you will want to see her patterns for them too.
Stay warm and keep repeating, "spring, spring, spring", it will be here today! diana