As with other market research projects, a requirement for taking part in focus groups is that I match the target group for the study. It is quite possible, by the way, that not only buyers or users of a product are invited but also those who are explicitly non-users or non-purchasers, in order to find out more about their motives.
Online focus groups
In an online focus group, the participants meet in a protected room on the internet to talk about the issues in question. As an example, this could be a forum for which I will be sent log-in data. In this protected online room, people exchange their views about the product with me or the issue in question for a set period of time.
Local focus groups
A focus group may also be held in person, i.e. all participants meet at a set time and place with me. This might be a conference room in a centrally-located hotel or a specially selected room.