The Chicago Interactive Marketing Association presents a panel discussion focusing on future challenges of Internet search engines and what advertisers need to do to stay ahead of technology. Panelists: Justin Merickel of Yahoo; John DiCola of Google; Matt Kain of 24/7 Real Media; and Dan Olson of Performics. The panel is moderated by Matt Spiegel, president of Resolution Media. $15, members; $25, non-members. 312-458-0870, or www.chicagoIMA.org.