One of the audience members at the B2B Marketing University in Boston asked about demand generation systems for small businesses, and how to distinguish among the vendors in general. haven't had a chance to review either product personally.) - Small Business: these products are sold to small businesses, often with just one or two people in the marketing department. My brief answer was that the biggest difference was less functionality than the target markets the different vendors pursue. This has more to do with the degree of personal selling (and

Alexa is a crude measure for many reasons -- although I do think the rankings correlate roughly with a vendor's volume of business and marketing actvitiy, I wouldn't go much further. - Infusionsoft and Genius.com also rank very highly, but they serve broader markets (small business and salespeople, respectively) so a direct comparison with pure-play demand generation vendors may not be appropriate. Summary: Based on Web traffic rankings, new demand generation vendors with low prices are gaining market presence. Pardot and (perhaps) Genius.com look particularly strong.