Wim van der Mark is a teacher / trainer in the areas of interactive online marketing, social media and sales. Besides that he is an author, a columnist, a consultant and a highly requested speaker at seminars and customer days.

In 1990 he created IDMK together with Rob Woelinga. As of January 1st 2007 the organization of courses as well as the IDMK brand name was taken over by BBP.

Dialoogtrainers.nl
As of January 1st 2007 Wim and Rob have been dedicating their full attention to the development as well as to providing direct marketing training programs, courses and presentations (also still for IDMK) under the name of Dialoogtrainers.nl.

Wim is a teacher/trainer for Dialoogtrainers.nl, IDMK and Why

Company. Wim regularly organizes seminars for De Zaak and towards the end of 2007 he wrote the subject package "Higher returns from your marketing Euro".