YouTube's page on what is considered fair use on their website. They talk about the four factors that are used to determine whether or not content constitutes fair use. I really like how they also have a section about "myths" of fair use - very useful for those posting videos.
No todos están de acuerdo con el "Fair Use", algunos creen que deben cobrar por todo el contenido en la red.
.. Don Rupert Murdoch no está de acuerdo con la idea del "fair use" y agregó que muchas veces es usado como pretexto para robar noticias ...