But the business model is unproven, and ad dollars will initially be a fraction of the industry's overall revenue.

WSJ: Advertisers Gather Around as Publishers Tout Bells and Whistles of Apple's iPad

Robertson initially issued demerits to experts who uploaded a search word to the wrong ad campaign.

FORBES: Magazine Article

Even Clear Channel is keeping Google on a tight leash, initially allowing the company access to less than 5% of its total ad inventory and drawing up what essentially amounts to a black list of existing advertisers that Google is prohibited from contacting.

FORBES

When asked about the ad, Ken Mehlman, the chair of the Republican National Committee, initially said he didn't see the racial overtones.

NPR: Elections Loom; Now Is the Time for Negative Ads