Santa Cruz
Santa Cruz in California is a great place to hitchhike. Many people hitchhike locally and it's on the 1 and close to the , some of the best highways for hitchhiking in the United States.
Going South to Los Angeles
Caffe Pergolesi can sometimes be a traveler's hub and a good place to find a ride. There is an MST bus connecting Monterey and Santa Cruz. Line 78 Presidio. Hard to hitch otherwise, try the onramps in downtown Santa Cruz. DON'T go to Capitola (Crappy-Toilet) to hitch. It won't work.
http://www.mst.org/maps-schedules/route-list/
If you try to go to the , be aware that the 152 and the intersection is just highways. Don't even try to wait there for a ride. It's better to start walking down South and hope to get picked up by a friendly soul coming down from Bay Area.
Nomadwiki & Trashwiki
Check Trashwiki for dumpsters...and share your wisdom :)