Here's a list of carpools for MSR (in each group, the first person is the driver):

 * William Stein 
 * Michael Abshoff
 * David Perkinson
 * Bill Hart

 * Robert Bradshaw
 * Craig Citro
 * Mike Hansen

 * David Joyner
 * Pho Duc Tai
 * Fredrik Johansson
 * Carl Witty

 * Rob Beezer
 * Emily Kirkman
 * David Roe
 * Kiran Kedlaya

 * Dan Shumow

 * Tom Boothby
 * Robert Miller (probably, may take alternate ride)

 * Bus:
 * Marshall Hampton