(from Jeff at CelticsBlog)

Lots of funs stuff out of the Central Previews.  If this Celtics team is serious about being the best in the East, they'll have to go through at least one of these teams.  In particular the Bulls, Cavs, and Pistons.  Just a stacked division right now.  The Pacers are down but Bird will keep working on them.  Yi is actually playing for the Bucks.  Give these previews a shot.  There is a wealth of knowledge here.

Central Previews

Chicago Bulls
Cobra Brigade
Bull Riding

Cleveland Cavaliers
YAYSports!
The POJO Dojo
Cavalier Attitude
Truth in a Bullet Fedora

Detroit Pistons
PistonsNationBlog
Empty The Bench
Need4Sheed
Motoring

Indiana Pacers
Indy Cornrows
Pacers Pulse

Milwaukee Bucks
Bango's Bunch