Display advertising can play an important role in lead generation by reaching target audiences at scale throughout the buyer's journey. Some key tips for making display work include:
1) Define the target audience for a broad initial "reach" campaign.
2) Customize ad creative to directly address each audience segment.
3) Use an initial reach campaign followed by retargeting ads to drive serious conversions at lower cost.
4) Measure how display advertising impacts other lead generation tactics like search and email.