A CPA firm spends $11,200 on a Web site that attracts only a handful of visitors. An insurance agency invests $80,000 in an advertising campaign and no one sees the ads. An alternative health clinic sends out 8,000 direct mail fliers and gets 26 responses. A manufacturer spends $28,000 on an attractive brochure that no one uses.

Now is the season to be on the lookout for the thieves. In rocky economic times, they come out to prey on companies eager to hold on to current customers and find new ones, introduce new products and services, or simply increase their market share.