I called up Jenson to confirm. Seems the monthly ride is now on the first Thursday of every month (was Wednesday), which meets at the Riverside location at 6PM (leaves at 6:30PM). Supposedly, the reason is to combine it with Team Dirty Work's weekly rides.
Saw the news here first: http://www.autoshops.com/board/index.php?action=view&id=13790
Saw the news here first: http://www.autoshops.com/board/index.php?action=view&id=13790