We’re back from our 8th annual Selling Online Subscriptions Summit, where execs from American Greetings to Zagat revealed test results and hot new tactics to grow a subscription business. Top takeaways include: hybrid business models (ads and subscriptions) can offer the best of both worlds; Web 2.0 opportunities abound, but require careful planning; and clarity rules in marketing messages. Plus, who was named our Entrepreneur of the Year.