There is a La Leche League group in Santa Barbara that may help you find some likeminded moms:
There is a yahoo group for Santa Barbara AP, but frankly, it's dormant, if not extinct!
There is a very active AP group for Ventura County and beyond:
http://groups.yahoo.com/group/VenturaCountyAPMoms -- there are moms in the group in Carpinteria and probably a couple or so in Santa Barbara.
On the homeschooling front, http://groups.yahoo.com/group/SBHN is a group where members post about SB-area opportunities, classes, resources, etc., for homeschoolers.
Hope something here is useful!