We’re not talking about a free PDF download, but an actual product or service. For instance, many retailers routinely host contests on their sites. These contests can help position them as influencers as visitors pass the contest info around to their networks. The products don’t have to have a high retail value, either. One word to the wise: If it’s a complicated contest or a high-value item, check the wording of your contest with your attorney. That way, you won’t run into any snags.