According to Microsoft, Yahoo advertisers will be able to start porting over to their ads to the AdCenter interface starting this week. The full integration of the Yahoo Interface to the Microsoft interface won’t happen until the end of October, however.

This is a scary proposition for some advertisers as they don’t want this transition to impact the upcoming holiday season. If you’ve been around long enough you’ll remember the infamous Google Florida algorithm update just before the holidays in 2003.

Since then, Google and the other search engines have learned not to rollout major updates in November and December (Google has toed the line of this ever since).

Microsoft says that if the Yahoo to AdCenter transition doesn’t go as smoothly as planned that they will delay the full integration until the beginning of 2011 in order not the impact holiday sales.

Filed under: Microsoft