As part of a class-action settlement, Yahoo plans to create a new ad distribution option that will give advertisers more control over where ads purchased through Yahoo appear.
Suit claims Yahoo is charging for "premium" ads on sites that show spyware ads and sites that appear when surfers misspell URLs.
Google remains the dominant force in pay-per-click ads with 80 percent of the market, but the new Bing-Yahoo team is already showing positive results for advertisers, says SearchIgnite.
Wal-Mart's Sam's Club offers online services like search engine optimization and pay-per-click advertising.
The data-tracking company says it plans use the venture money to develop new tools to trace fraudulent pay-per-click search ads.
Advertisers will be able to prevent their pay-per-click ads from showing up at IP addresses of competitors suspected of using click fraud.
DoubleClick, a network of advertisers that provides detailed profiles on Netizens based on their surfing habits, today took Net advertising to the next step by announcing it would launch a test of a system in which advertisers only pay for ads that are viewed. DoubleClick will allow advertisers participating in the beta test to pay per click, per lead, per sale, or per download. The idea is to make advertising a no-risk proposition, according to the company.