The Microsoft adCenter announced it will be changing its trademark policy in September.
While "[t]he heart of the trademark policy is unchanged". adCenter reported, but they will not keep lists of approved affiliates etc.
They seem to be moving towards the Google model.

>>
Source Link>>Blog:
searchenginewatch>>Publish Date: 8/25/2007 11:00:35 AM
>>Keywords: trademark policy
Related Posts>>Google Launches Public Policy Blog # In addition to its corporate blog and the blogs it keeps for most of its products, Google now has a public policy blog, to keep the world abreast of its endeavors in Washington and with other governme
>>Utah"s Misguided Trademark Protection Act # Last week, technology law blogger Eric Goldman reported on a new law banning keyword advertising in Utah. The law bans advertisers from using the trademarked terms of their competitors to target ads t
>>Google Fights for Its Trademark # Google has sued serial trademark litigant and self-styled "intellectual property entrepreneur" Leo Stoller for false advertising, unfair competition and RICO violations for claiming that Stoller owns
>>Search Engine Forum Discussions # Bringing SEM In-house Cre8asite Forums - "To replace an established SEM agency, you"re probably looking at hiring an SEO, a person to manage PPC, a talented designer (if you don"t already have one), a
>>American Airlines Suing Google Over Trademark Violation # Seems American Airlines has not read about previous law suits over trademark terms as keywords. According to a report by TechDirt, they have decided to go to court and see how their lawyers fare again
>>Another Round of G-Mail vs Gmail # Google lost another trademark battle against the German holder of the G-mail trademark, Daniel Giersch, The Register writes:
The Office for Harmonisation in the Internal Market (OHIM), the body whi
>>EFF Backs Google Trademark Advertising Methods # Google"s allowing of advertising on trademarked keywords has received the support of the civil rights group Electronic Frontier Foundation. A Federal Appelate Court will decide if Google can allow ad
>>Google Updates AdSense Policies # Google updated its policies for publishers in the AdSense program last night. Jennifer Slegg has a very thorough breakdown of the changes, with special attention to the competitive ad policy.