Ads. MegaUpload (and all other "upload"/filesharing websites), Grooveshark. Google and Facebook are not really giving you access to mostly illegal content, bu

Ads. MegaUpload (and all other "upload"/filesharing websites), Grooveshark. Google and Facebook are not really giving you access to mostly illegal content, but are still paying their own money for the bandwidth (which is huge, in the case of Facebook).