Click fraud auditing firms can't count, according to a report issued Tuesday by Google.

Viacom's MTV Networks has agreed to distribute clips from its cable networks over Google's advertising network, in a test of what could become a new economic model for Web-based video delivery, the companies said Sunday.

Responding to concerns about click fraud in the online-ad industry, Google will be revealing to advertisers the number of invalid clicks on their ads.

Google has launched Google Checkout, a payment system for online retailers that's tightly integrated with Google AdWords. Checkout isn't the rumored PayPal killer, but it does offer some compelling features for both merchants and online shoppers alike.

Google has just announced that they have found a way to effectively monetize Google Video beyond the Google Video Store model they are currently using. Google Click-To-Play Video Ads will be a part of the Google Adwords content network; in a sense - AdSense Video.

Google has begun notifying its AdWords advertising clients about the recent $90 million settlement of a click fraud lawsuit, signaling the start of the month-long period in which advertisers can seek to claim a piece of the money.

While altering the daily budget for a paid search client the other day, I noticed a new setting that's available in Google AdWords Campaign Settings. Not just any setting, but a new option that will likely impact the way most pay per click marketers manage campaigns.

Google is encouraging users to promote products and services listed on Google Base through its AdWords program.

Botnets are being used for Google Adword click fraud, according to security watchers.

If you're new to search marketing and wanting a guide to help you get started with Google AdWords and AdSense, consider picking up a copy Google Advertising Tools.