Key Takeaways Lamar launched Lamar Health Connect, leveraging its data partners to target pharma audiences more precisely across its nationwide network of displays. Lamar owns and operates 366,000 OOH displays in the U.S. and Canada — of which 5,200 are digital displays. The out-of-home (OOH) advertising behemoth has an inventory of 366,000 OOH displays that it owns and operates in the U.S. and Canada, of which 5,200 are digital displays. How the Lamar Health Connect tool works is that it layers targeted audience segments over Lamar’s inventory of displays. The Health Connect Audience Mapping tool allows pharma brands to identify where their desired audiences are most likely to be reached.