While the traditional focus of requirements engineering was mainly on the systematic, reliable and adequate translation of the customers intentions into requirements documentation, it became recently increasingly accepted that requirements engineering, especially for innovative and novel products, is probably more adequately described as a process of joint discovery of requirements that can be supported by creativity techniques. However, so far little work exists on how to systematically select techniques as a basis for requirements engineering. As part of the IdSpace Project, which focuses on collaborative product innovation, we are currently investigating this area. This paper provides a brief overview of our work in this domain.