In a prior business life, he co-founded Investopedia.com, a site that provided educational content and tools to help the individual investor. At Investopedia, he oversaw both the editorial staff (including 200+ external contributors) and the development team. Investopedia was sold to Forbes Media in 2007. At that time, Investopedia was attracting in excess of 5 million visitors per month.
Janssen cut his teeth in the tech world back in the early days of the Web. At 17 years old, he was the youngest Certified Internet Professional in Canada (an certification from Novell) and a Microsoft MCSE. He currently oversees the content side of the site.