ClickFraud settlement

Behind in posting news here, but this one is important.
1) credit on all AdWords accounts
2) but what are they going to do to prevent future fraud?

Google Settles Suit Over Ad Referrals - New York Times:

SAN FRANCISCO, March 8 (AP) — Google has agreed to pay $90 million to settle a lawsuit contending it overcharged thousands of advertisers who paid for bogus sales referrals generated through a ruse known as click fraud.

The proposed settlement, announced by the company Wednesday, would apply to all advertisers in Google's network during the last four years. Any Web site showing improper charges dating back to 2002 will be eligible for an account credit that could be used toward future ads distributed by Google.

NOTE :
The lawsuit, filed by Lane's Gifts and Collectibles on behalf of all Google advertisers, also named Yahoo. Yahoo said Wednesday that it intended to fight the lawsuit.