Denver-based InfoNow Corp., a publisher of software-as-a-service-based channel sales applications, reported Wednesday that it has hired Keith Knowles as vice president of marketing and Joe Zurawski as vice president of business development. Knowles, InfoNow noted, hails from TeleTech, where he worked as vice president, products and strategy, of OnDemand Solutions. A 17-year industry veteran, Knowles has also worked for Amdocs, Hewlett-Packard and Applied Materials. InfoNow said Zurawski joined the company from SPSS, where he served as vice president of worldwide marketing. He also held management positions at Business Objects, Firstlogic, System Sensor, Ernst & Young and Motorola.