Search marketing vendors provide the technology and services needed to manage increasingly complex paid search media buys and search engine optimization efforts. In January 2009, we published a detailed evaluation of seven US search marketing agencies — but buyers have dozens of other choices. This report provides data on search marketer expectations for the recession, basic information on 31 vendors — including standalone technologies, full-service agencies, and specialist search providers — as well as a set of key probes to help buyers narrow their vendor shortlists.