New York--E-commerce hosting company Vicinity.com was the top trafficked b-to-b site in June, according to a report released Thursday by Media Metrix Inc., New York. Vicinity, Palo Alto, Calif., racked up 2,094 unique visitors during the month. The company provides marketing services for large corporations, including business directories, maps and brand-awareness tools. An application service provider, Vicinity.com allows marketing executives to provide services to satellite sales locations without giving up management of the brand. Though the site was tops in b-to-b, no site in the category cracked Media Metrix's list of top 50 sites. AOL Network, Microsoft Corp. sites, Yahoo!, Lycos and Excite@Home were the top five overall. Media Metrix collects its data through sample panels of computer users, and has recently merged with AdRelevance, which uses spiders and other techniques to determine the efficacy of online advertising campaigns.