In order to assist class action defense attorneys anticipate the types of class action lawsuits 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 the California state and federal courts located in 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 preceding week. This report covers the period from January 16 – 22, 2009, during which time 46 new class action lawsuits were filed. Labor law class actions generally top the list of new class action filings, last week there was substantial balance among the top three categories of new class action complaints. This week, however, class actions alleging employment-related claims surged to the top. During this report period, 20 new labor law class action lawsuits were filed, representing 43% of the total number of new class actions filed during the past week. Three other categories satisfied the 10% threshold: class actions alleging federal securities fraud, with 8 new lawsuits (17%), next came class actions alleging violations of California’s Unfair Competition Law (UCL), which includes false advertising claims, with 7 new filings (15%), and class actions alleging antitrust violations, with 6 new lawsuits (13%).