Lead nurturing campaigns consist of delivering a series of messages to contacts based on common qualities to put the right message in front of the right person at the right time. There are two types: warming campaigns, which are action-based and messages build upon one another with the goal of peaking interest in a solution; and omnipresent campaigns, which are non-action based and focus on repetition to keep a company top of mind for when prospective clients are ready to buy. Starting a lead nurturing campaign involves defining the target market, developing content, deciding on a frequency, and launching the campaign.