The American Business Press, New York, said that in January plans to launch the Business Information Network (BIN), an ad tracking unit that will publish monthly ad pages and revenues figures for 150 business-to-business magazines. In a major departure from the Magazines Publishers of America, the major consumer trade group, the ABP plans to generate revenue figures based on revenue per page in 25 market categories rather than the one-time page rate formula favored by the MPA's Publishers Information Bureau. "We have to supplies agencies, advertisers, the press and our members with real numbers instead of guesstimates" said ABP president and COO Gordon Hughes. "This is really about setting up hard numbers for the industry. It will help media planners executive media plans and tell sales managers if ad categories are really up or down in revenue and pages,"