Mark Kilens, leader of HubSpot Academy, will speak on the "buyer's journey" and how it relates to customer education and communication, at an event on Nov. 7. HubSpot is a marketing software company based in Cambridge, Mass. The event is hosted by SparkReaction, a Des Moines marketing firm, and is aimed at helping small businesses and startup companies learn how they can take advantage of online and content marketing. The free event will take place from 5:30 to 6:30 p.m. at StartupCity Des Moines, 317 Sixth Ave. Register online.