Cars.com last week broke an extensive online media campaign - featuring a mix of display and rich media units running on portals and auto and lifestyle sites - to complement a TV campaign it launched in March, writes ClickZ. PointRoll rich media units have been streaming video of the "Metermaid" TV spot, and the rich media units include an interactive game within PointRoll units that match people to cars.

Additional media buys include homepage takeovers on three CBS sites; behavioral targeting on Advertising.com and Tacoda Network sites and on Yahoo; email roadblocks on Yahoo Mail; and integration into eVite invitations; and ads on AOL targeting visitors to the AOL Autos channel and AOL Autoblog.

The overall campaign is valued at over $100 million, according to Cars.com.