Technically, it doesn't need to be bloggers. Anyone with a computer connection - and a weekend blizzard - can help out.
SRUChris, Stale Gum and others have been compiling a Wiki on baseball cards. Here you'll find checklists and basic information about sets.
Check out the link here.
Obviously, there are so many sets and so much going on that it's nearly impossible for a few people who have other responsibilities such as school, work and life to be able to create the entire list. But, you can help. It's simple with direction right on the page.
Eventually, I think the BaseballCardPedia is going to be expendable source. It would be amazing if people could help out, no matter how small. Everything adds up.
I mean, look how great this is. They already have a 2010 Upper Deck checklist.