Kelkoo.com, the shopping comparison site operator now owned by Yahoo! has named Jean-Fabrice Matthieu, formerly senior vice-president of marketing and business development, as its managing director. The move follows the appointment of Pierre Chappaz, former Kelkoo chief executive officer, and Dominique Vidal, former Kelkoo group managing director, as president and chief operating officer respectively for Yahoo! Europe. Matthieu will have ultimate responsibility for all Kelkoo’s marketing activities across Europe.