14-Sep-09 Each year, BtoB asks a panel of five Web site design and usability experts to identify 10 of the best b-to-b Web sites out there. Though the medium continues to evolve, with such features as video and social media playing an increasingly prominent role, the basics remain the same. B-to-b Web sites must provide visitors clear, concise product and company information, reflect a company’s brand consistently and engage users in a conversation—whether it’s about an industry trend or about how to take the next step toward a making a purchase.