It seems to me that if Word Spy said that "google" meant "to search for information on the web..." without mentioning the Google(tm) Search Engine, then it's perfectly appropriate for Google Technology Inc's lawyer to send them a letter saying "Hey, you ought to mention that that's our trademark, we invented the word." I don't know how much recourse Google Inc should have if Word Spy declines to add such a notice, but I'd think that Word Spy would want to mention that "Google" is a trademark. Which they've done.

The subsequent messages on the American Dialect Society mailing list at
http://listserv.linguistlist.org/cgi-bin/w...ind0302d&L=ads-l#25 , http://listserv.linguistlist.org/cgi-bin/w...ind0302d&L=ads-l#28 , http://listserv.linguistlist.org/cgi-bin/w...ind0302d&L=ads-l#49 , and http://listserv.linguistlist.org/cgi-bin/w...ind0302d&L=ads-l#50 give some interesting perspectives from professional lexicographers on issues of trademarks appearing in dictionaries.