Complaints have been filed against video ad networks for automatic video ads. The complaints call out the practice of serving video ads that start automatically when web sites are visited, sometimes launching in video panels below the fold that aren t immediately visible. Adweek reports that industry observers are calling the practice deceptive, used as a way for providers to trump up their ad impressions. Their clients are discovering that they need to monitor their buys manually, an effort they see as an expensive option. One firm named has begun asking its partners to stop the dubious practice.