FC Barcelona (http://www.youtube.com/user/fcbarcelona) – 288.887 Real Madrid (http://www.youtube.com/user/realmadridcf) – 165.435 Chelsea FC (http://www.youtube.com/user/chelseafc) – 80.819 Santos FC (http://www.youtube.com/user/santostvoficial) – 77.844 Juventus FC (http://www.youtube.com/user/juventus) – 69.160 AC Milan (http://www.youtube.com/user/milanchannel) – 62.873 Liverpool FC (http://www.youtube.com/user/LiverpoolFC) – 44.743 Internazionale Milano (http://www.youtube.com/user/INTER) – 41.441 Manchester City (http://www.youtube.com/user/mcfcofficial) – 38.262 Vasco da Gama (http://www.youtube.com/user/vasco) – 19.532 Sao Paulo FC (http://www.youtube.com/user/saopaulofctv) – 18.465 Bayern München (http://www.youtube.com/user/fcbayern) – 18.050 AS Roma (http://www.youtube.com/user/asroma) – 13.851 Ajax Amsterdam (http://www.youtube.com/user/ajax) – 13.564 Boca Juniors (http://www.youtube.com/user/bocajuniorstv) – 13.091 Borussia Dortmund (http://www.youtube.com/user/bvb) – 12.707 Club America (http://www.youtube.com/user/CFAmericaTV) – 12.700 Cruz Azul (http://www.youtube.com/user/tvcruzazul) – 10.029 Schalke 04 (http://www.youtube.com/user/S04) – 7.956 Spartak Moscow (http://www.youtube.com/user/FCSMofficial) – 7.850 Flamengo (http://www.youtube.com/user/flamengo) – 7.838 River Plate (http://www.youtube.com/user/cariverplatetv) – 7.485 SL Benfica (http://www.youtube.com/user/slbenfica) – 6.575 Paris Saint-Germain (http://www.youtube.com/user/PSGofficiel) – 6.423 FC Porto (http://www.youtube.com/user/fcporto) – 6.035
Until now they haven't an official channel. Maybe they will establish one in the future. Like Spurs, they create one a month ago (http://www.youtube.com/user/spursofficial).
Some official channels of EURO 2012 teams: England (http://www.youtube.com/user/england) Netherlands (http://www.youtube.com/user/onsoranje) Spain (http://www.youtube.com/user/YouRFEF) France (http://www.youtube.com/user/LesBleusTV) Poland (http://www.youtube.com/user/LaczyNasPilka or http://www.youtube.com/user/BialoczerwoniComPl) Czech Republic (http://www.youtube.com/user/ceskarepre) UEFA (http://www.youtube.com/user/uefa)
SL Benfica only on 23. some year ago there were rumers they are one of most popular teams int the world also Man. Utd should be in top 3.
The new TOP 50: FC Barcelona (http://www.youtube.com/user/fcbarcelona) – 398.778 Real Madrid (http://www.youtube.com/user/realmadridcf) – 234.938 Chelsea FC (http://www.youtube.com/user/chelseafc) – 128.198 Santos FC (http://www.youtube.com/user/santostvoficial) – 101.598 Juventus FC (http://www.youtube.com/user/juventus) – 95.753 AC Milan (http://www.youtube.com/user/milanchannel) – 76.011 Liverpool FC (http://www.youtube.com/user/LiverpoolFC) – 73.356 Manchester City (http://www.youtube.com/user/mcfcofficial) – 65.890 Internazionale Milano (http://www.youtube.com/user/INTER) – 53.323 Bayern München (http://www.youtube.com/user/fcbayern) – 26.638 Sao Paulo FC (http://www.youtube.com/user/saopaulofctv) – 26.359 Vasco da Gama (http://www.youtube.com/user/vasco) – 24.835 AS Roma (http://www.youtube.com/user/asroma) – 23.924 Flamengo (http://www.youtube.com/user/flamengo) – 20.660 Borussia Dortmund (http://www.youtube.com/user/bvb) – 16.970 Boca Juniors (http://www.youtube.com/user/bocajuniorstv) – 16.212 Ajax Amsterdam (http://www.youtube.com/user/ajax) – 15.881 Spartak Moscow (http://www.youtube.com/user/FCSMofficial) – 15.064 Paris Saint-Germain (http://www.youtube.com/user/PSGofficiel) – 13.947 Club America (http://www.youtube.com/user/CFAmericaTV) – 13.834 Schalke 04 (http://www.youtube.com/user/S04) – 13.388 Corinthians (http://www.youtube.com/user/tvcorinthiansoficial) – 12.605 River Plate (http://www.youtube.com/user/cariverplatetv) – 12.504 Cruz Azul (http://www.youtube.com/user/tvcruzazul) – 11.951 SL Benfica (http://www.youtube.com/user/slbenfica) – 10.175 Galatasaray Istanbul (http://www.youtube.com/user/gskofficial) – 9.646 FC Porto (http://www.youtube.com/user/fcporto) – 9.457 Tottenham Hotspur (http://www.youtube.com/user/spursofficial) – 8.360 Atletico Madrid (http://www.youtube.com/clubatleticodemadrid) – 7.821 CF Monterrey (http://www.youtube.com/rayadosoficial) – 7.055 Atletico Mineiro (http://www.youtube.com/user/tvgaloweb) – 6.888 Club Atletico Nacional (http://www.youtube.com/user/nacionaloficial) – 6.647 Sporting Clube de Portugal (http://www.youtube.com/user/sportingcp) – 6.517 Zenit Saint Petersburg (http://www.youtube.com/user/ZenitFootballClub) – 6.360 1. FC Köln (http://www.youtube.com/user/fckoeln) – 6.107 Werder Bremen (http://www.youtube.com/user/werderbremen) – 6.043 Botafogo (http://www.youtube.com/user/BOTAFOGOFRoficial) – 5.948 UANL Tigres (http://www.youtube.com/user/tigresoficial) – 5.868 Borussia Mönchengladbach (http://www.youtube.com/user/borussiatv) – 5.529 PSV Eindhoven (http://www.youtube.com/user/psveindhoven) – 5.496 Hamburger SV (http://www.youtube.com/user/hamburgersv) – 5.379 AS Saint-Étienne (http://www.youtube.com/user/asse) – 5.354 Lazio Rom (http://www.youtube.com/user/Officialsslazio) – 5.289 Chivas Guadalajara (http://www.youtube.com/user/chivas) – 5.034 Fluminense (http://www.youtube.com/user/Fludigital) – 4.939 Lech Poznan (http://www.youtube.com/user/LechTV) – 4.534 LA Galaxy (http://www.youtube.com/user/TheLAGalaxy) – 4.507 Shakhtar Donetsk (http://www.youtube.com/user/shakhtartv) – 4.321 Palmeiras (http://www.youtube.com/user/palmeirascombr) – 4.190 UNAM Pumas (http://www.youtube.com/user/PumasClub) – 4.090
An impressive list here of YouTube football/soccer channels. http://www.footballfriendlies.com/2013/02/official-youtube-football-soccer.html Roughly 100 channels categorized.