Die eifrigsten Social-Network-Nationen

REUTERSFans Mel and Margaret McLaughlin (L) and Rob and Kathy Wolthuizen from Ottawa, Canada, wait for Canadian country singer Shania Twain after the unveiling of her star on the Walk of Fame in Hollywood, California June 2, 2011. REUTERS/Mario Anzuoni (U

dapdVenezuelas fans, their faces painted with the colors of the Venezuelan flag, smile before the Copa America third-place soccer match between Venezuela and Peru in La Plata, Argentina, Saturday July 23, 2011. (Foto:Pedro Fosco/AP/dapd)

REUTERSFormer Beatle Paul McCartney holds a Peruvian flag as he greets fans outside a hotel in Lima, May 8, 2011. McCartney will give a concert in Lima on May 9 as part of his "Up and Coming Tour. REUTERS/Pilar Olivares (PERU - Tags: ENTERTAINMENT SOCIETY

REUTERSColombian fans await the start of their FIFA U-20 World Cup quarter-final soccer match against Mexico in Bogota, August 13, 2011. REUTERS/Fredy Builes (COLOMBIA - Tags: SPORT SOCCER)

EPAepa02726068 Fans cheers during a concert of Canadian singer Justin Bieber in Pasay City, south of Manila, Philippines, 10 May 2011. The concert is part of the artists My World Tour. EPA/DENNIS M. SABANGAN

REUTERSChile fans await the start of their 2014 World Cup qualifying soccer match against Paraguay in Santiago, November 15, 2011. REUTERS/Victor Ruiz Caballero (CHILE - Tags: SPORT SOCCER)

REUTERSTurkey fans cheer before the start of the Euro 2012 Group A qualifying soccer match between Turkey and Austria in Istanbul March 29, 2011. REUTERS/Murad Sezer (TURKEY - Tags: SPORT SOCCER)

REUTERSRussias hockey fans attend the quarter-final match against Canada at the Ice Hockey World Championships in Bratislava May 12, 2011. REUTERS/Petr Josek (SLOVAKIA - Tags: SPORT ICE HOCKEY)

REUTERSArgentina fans await the start of their quarter-final soccer match against Uruguay at the Copa America in Santa Fe, July 16, 2011. REUTERS/Marcos Brindicci (ARGENTINA - Tags: SPORT SOCCER)

REUTERSIsraeli fans cheer for their team at the Euro 2012 Group F qualifying soccer match against Greece at Bloomfield Stadium in Tel Aviv September 2, 2011. REUTERS/Darren Whiteside (ISRAEL - Tags: SPORT SOCCER)

REUTERSFans Mel and Margaret McLaughlin (L) and Rob and Kathy Wolthuizen from Ottawa, Canada, wait for Canadian country singer Shania Twain after the unveiling of her star on the Walk of Fame in Hollywood, California June 2, 2011. REUTERS/Mario Anzuoni (U