COMMON acts as the networking community, industry advocate and leading education provider for Power Systems (IBM i, AS/400, iSeries, System i, AIX and Linux) users in North America. COMMON is the world’s largest users group of midrange IBM and IBM-compatible technology. The organization comprises more than 4,000 individual and corporate members. They represent more than 22,000 IT professionals involved with the IBM Power Systems (IBM i, AIX, Linux) and related solutions.