I shared retro reviews of a few baseball blogs yesterday. I'm not going to share a review of every SB Nation blog. (SB Nation is some kind of website that hosts baseball team blogs, every team has one. And then there are blogs from other people devoted to their own particular team)
So if you're a fan of a particular baseball team, go to Amazon's Kindle page and do a search for it. You will see the SB Blog devoted to that team, and chances are you'll see at least a couple more for each team.