All California Codes – from the official government site
Bill Information – full text of bills, including status, history, etc., available for free online.
California Rules of Court – From the California Courts Site
Legislative Research, Inc.
Calif. legislative research service (paid services require preauthorization for cases in the Third & Fifth Districts), which also contains some free commentary and instructional materials on the use of legislative intent material, as well as examples of motions for judicial notice.