A concrete contractor discusses his experience with Management Information Exchange (MIX) Groups, a program developed by the American Society of Concrete Construction (ASCC) that allows contractors to meet regularly to share information about their businesses--without worrying about helping competitors or violating antitrust laws. Using data supplied by interested contractors, ASCC forms each MIX Group, which consists of four to 12 noncompeting contractors with similar business interests. Participants are responsible for setting up the meetings, which are held about twice a year. These meetings rotate among members' business offices and last about two days, giving participants enough time to examine the host contractor's operation. Typical MIX Group questions concern management ability, financial stability, work force training, marketing strategy, and contractor reliability and integrity.