I feel that everyone needs to know all that they can about everything and about the fields that they are in... I am addicted to blogs, filing things and finding new and cool things and people!
As for Blogs I am up to about 150 and keep looking for more! I use Google Reader - Helps me section everything off so nicley!
My Reference folders are ever growing and getting more and more categories... There is always something new that inspires me - my newest source: Ceramics. I love the forms that can be achieved in the medium.
I have a Designers / Design Firms folder that is also getting bigger as well I am always searching for people that I haven't heard of yet.