California class action defense attorneys will face a substantial number of new class action claims based the latest court filings this past week. To allow the class action defense lawyer to anticipate claims against which she or he may have to defend, we provide weekly, unofficial summaries of the legal categories for class actions 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. This report covers the time period from May 25 – May 31, 2007, and while labor law class action cases have been logging an impressive streak of heading up the list of new class action filings, this past week ADA (Americans with Disabilities Act) class actions claimed the top spot. We include only those categories that include 10% or more of the class action filings during the relevant timeframe. Approximately 50 class action lawsuits were filed in these California state and federal courts during that time period, of which 17 (34%) new class action suits involve ADA claims. Employment law class action lawsuits came in a close second, with 16 new filings (32%). The third place category consists of six (6) new unfair business practice class action lawsuits, which include claims of false advertising.