Google is involved in a lawsuit, now on appeal, with Rosetta Stone about sale of keywords that reflects trademarks. Paul Levy, of the Public Citizen, reviewed Rosetta Stone’s brief and was concerned by the redactions (his concerns discussed here). He succeeded in making public an unredacted copy of the brief available. The unredacted brief, with formerly redacted portions circled, is here.
Among the redactions: Rosetta alleges that Google conducted internal studies that showed high (as in 94% in some cases) levels of consumer confusion resulting from use of a trademark anywhere in the text of an ad.