Here are some sabermetric links around the web:
Al Yellon interviews Bill James at Bleed Cubbie Blue.
This is not groundbreaking information but I'm always looking for clear explanations and applications of statistical concepts. Michael Jong reminds us which types of hitters can get away with a lot of strikeouts and which ones can't at Marlin Maniac.
I'm a little late on this one but Mike Rogers talks about Tigers bullpen usage at Bless You Boys.
Ben Jedlovec discusses the Baseball Info Solutions Fielding System at ESPN Insider.