It seems the AJAX Search API now lets you get a machine-readable list of search results in a relatively straightforward fashion; I'm not sure that was true back when the SOAP API was canned. http://code.google.com/apis/ajaxsearch/documentation/#fonje But the terms and conditions still seem to prevent you from using structured data to do anything useful to the search results. http://code.google.com/apis/ajaxsearch/terms.html (see especially the start of 1.3)