Jon McCaslin, whom I often quote or link to his blog here and on my Music for Drummers blog, recently wrote a piece titled Baby Lawrence that will be of interest to brush players.
If you are not familiar with Jon's blog, Four on the Floor, I highly recommend you check it out and go exploring. It's a treasure trove of information on a wide ranging array of drum and music topics. Jon is a Doctoral Candidate at University of Toronto, as well as an active musician who has released albums.
See also: Selecting Heads and Brushes.