User centric media in the future internet: trends and challenges. - Oscar Mayora; Petros Daras; Marianna Panebarco; Nick Achilleopoulos; Peter Stollenmayer; Doug Williams; Nadia Magnenat-Thalmann; Carmen Guerrero; Michiel Pelt; Tim McGrath; Eugenia Fuenmayor; David Salama; et al. (DIMEA, 2008)