PPC search marketing networks compared
#1 in Traffic : Adwords
#2 in Traffic : MSN AdCenter
#3 in Traffic : Yahoo! Search Marketing

Google Benefits

MSN benefits

90% of MSN users have made a purchase in last 6 months Target by age,gender,location, time of day
Allows direct linking
10% market share, but less Advertisers than Yahoo! and Google MSN AdLabs MSN AdCenter Blog

Yahoo Search Marketing
At long last Yahoo! revamped their ad network to add some good features to a network that already: Had the largest audience & large consumer audience
The 2nd largest marketshare, 2x more than #3 MSN
That is syndicated on CNN, altavista, iVillage, and more.

New Features
Geo-targeting
Ads no longer just based on bid price
Run split ads
Improved ad interface Remember Yahoo! ads are now only 70 characters long (your old ads will get truncated)!.

Also keyword matching is not as flexible as MSN or Google, editorial reviews can be inconsistent, low-quality syndication partners.

More info check out Yahoo Search Marketing Blog



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