After running his own SEO company as one of the most successful affiliate marketeers in Germany from 2002 to 2005, Ralf sold the company and in 2005 he started the digital download marketplace Tradebit.com which today hosts more than 20,000 merchants and over 10 Mio. downloadable products.
Ralf got into e-commerce early 1995 when he started one of the first Internet shopping malls in Germany. As a book author and Linux evangelist he helped hundreds of companies to succeed with their online ventures since then. He is a frequent speaker on conferences about search technologies in the US and Germany.