You already know about the regular BTA blog at http://bta3o1jarvis.blogspot.com/.
And don't forget the video tutorials at tinyurl.com/i0th.
Now there is a new, second blog at http://bta.posterous.com/ where you can find pages of the yellow booklet in .doc format. This should be handy in case you forget your booklet or want to see it when you don't have it nearby. Click on the plus sign to see the document in a more readable size.