To assist class action defense attorneys anticipate the types of cases against which they will have to defend in California, we provide weekly, unofficial summaries of the legal categories for new class action lawsuits filed in California state and federal courts in the Los Angeles, San Francisco, San Jose, Sacramento, San Diego, San Mateo, Oakland/Alameda and Orange County areas. We include only those categories that include 10% or more of the class action filings during the relevant timeframe. This report covers the time period from August 6 – 12, 2010, during which time 48 new class actions were filed in these California state and federal courts. Labor law class actions often account for more than half of all class actions filed in any particular week, and during this reporting period 27 new class actions (representing 56% of the total number of new class actions filed). The only other category to break the 10% threshold involved California’s Unfair Competition Law (UCL), which includes false advertising with 11 new filings (representing 23% of the total number of new class actions filed).