Call of Duty Elite, the community portal for Activision's perennial shooter is apparently doing gangbusters, according to the publisher's 2011 earnings report. The report states that Elite has pulled in over 7 million members as of January 31.
Even more impressive: over 1.5 million of those are premium subscriptions, available as part of the $100 Hardened Edition of Call of Duty: Modern Warfare 3 or as a separate $50 purchase. Paid membership grants a few benefits, most notably a free pass and early access to Modern Warfare 3 DLC.
We'd say the service probably qualifies as a success at this point, at least from Activision's perspective.