AdMob,

the mobile advertising market firm whose clients include eBay and Nokia, has achieved 300m mobile pages views per month. It’s a major milestone for the mobile advertising market:…
now with as little as $10 even the smallest of advertisers can take advantage of this network and generate results. With the further addition of a contextual search channel, AdMob now allows advertisers to build campaigns that include mobile web searches through Google’s mobile AdWords service.