But a new study suggests giving consumers social currency or virtual currency as a reward for spending time with a brand message is a powerful incentive.
But some digital ads are now explicitly offer social currency rewards rather than access to free content.
For example, a brand may sponsor a social game, and make a reward of virtual currency contingent on watching a display ad. These incentivized ads, research from digital advertising technology company SocialVibe and KN Dimestore found, can be very effective, even when consumers just watched to get the incentive.