Cornerstone Internet Solutions, a provider of comprehensive Internet-based business-to-business (B2B) services and solutions, today announced that its business unit has been recognized as one of the top 200 B2B marketplaces in's first annual "Best of the Web: B2B" issue.In its "Best of the Web: B2B" guide, reported that more than 1,000 Web marketplaces have been announced in the past twelve months. Out of those, researchers had selected 200 of the most promising B2B sites in each of 25 different industries. judged each company on its strategy, execution, financial staying power, and Web site. The article can be found online at