Here are some resources where you can find the stats themselves as well as statistical analysis blogs, primers, essays, and books:

Websites:

Basketball-Reference

82games.com

Basketball Value

HoopData

Hardwood Paroxysm

Basketball Prospectus

APBRmetrics

NBAstuffer.com

PopcornMachine.net

Basketball Geek

Stats by Numbers

Team Rankings

Basketball-Analysis

twitter:

http://twitter.com/tomhaberstroh

http://twitter.com/Hoopdata

http://twitter.com/bball_ref

http://twitter.com/HPbasketball

http://twitter.com/basketballvalue

http://twitter.com/johnhollinger

http://twitter.com/dmorey

Books:

Basketball On Paper, by Dean Oliver

Primers, Glossaries, & Some Introductory Advanced Stats:

And here are a few good elementary primers on some of the main advanced metrics.

Click here forThe Basketball Notebook Stats Primerfor a good overview.

Two great glossary/dictionary type references can be found at the following links:

The BBR Blog-tionary

-and-

anAdvanced Statistics Glossaryat APBRmetrics

Here, from Ben Q Rock at the Orlando Pinstriped Post, are a few more detailed primers which introduce some specific stats and concepts:

Advanced Metrics Handbook, Vol. 1: Effective Field Goal Percentage

The formula:

(FG + 0.5 * 3P) / FGA

Advanced Metrics Handbook, Vol. 2: True Shooting Percentage

The formula:

Points / (2 * (FGA + 0.44 * FTA))

Advanced Metrics Handbook, Vol. 3: Pace

The formula:

0.96 * (FGA + 0.44 * FTA + TO - OReb

From another thread, here Chronz' explanation ofwhy that ".44" number is in the TS% formula:

Originally Posted byChronz

And also from another thread, here's patsSOXknicks' breakdown ofthe difference between assist % and assist ratio:

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If you know of any additional websites, twitterers, books, etc. which you think should be added to the list above, please post them in this thread.