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 March 5 – 11, 2010, during which time 44 new class actions were filed in these California state and federal courts. While class actions involving employment-related claims often account for more than half of the new class action filings in any particular week, this past week saw a substantial drop in such filings. During this reporting period, only 13 new labor law class actions were filed, representing a relatively paltry 30% of the total number of new class actions filed. The only other categories to break the 10% threshold involved class actions alleging violations of California’s Unfair Competition Law (UCL), which includes false advertising claims, with 10 new class action lawsuits (23% of the new class actions filed during the reporting period), and class actions alleging violations of federal securities laws, with 7 new filings (16% of the total number of class action filings).