As mentioned here last year, California's minimum wage increased to $8.00 per hour, effective January 1st, 2008. The 2008 rate represents a 6.7% increase over the old (2007) minimum wage, which was $7.50 per hour.
Some employees are exempt from the minimum wage law.
Others are covered by a higher wage law: San Francisco increased its minimum wage to $9.36, also effective January 1, 2008.
The federal minimum wage for those employees not covered by state or local minimum wage laws, remains at $5.85, until July 24, 2008, at which time it will increase to $6.55, and then $7.24 a year later.
Updated California work place posters for employers can be found here: http://www.dir.ca.gov/wpnodb.html