The conferences are usually sponsored by local Internet media and affiliates. People in the day to day business of Internet advertising and marketing speak, with lots of case studies, and there is structured time for networking. It's a nice introduction for those new to the business, and we at Trellix send a few people each year to the one in Boston. I only stayed for the morning. We now know it's all of these but also its own beast.
Email is the killer marketing application.
Promoting without word of mouth, such as HotMail adding its own signature to all email you send with it. In eCommerce, the transaction itself is a marketing tool. After Robbin there was a panel. Evan Grossman of HookMedia said you must check your Internet ad campaigns daily. What worked last week may not work this week.