Many sweepstakes give you the option of entering using the various social media sites, my question is how are you notified if you win? For example if it asks you to tweet someone to enter and you were to win then how would you be notified? My concern is that I don't visit my social media sites that often and if you were only notified thru that site then you could be wasting a lot of time entering using these methods. Basically I'm wondering how the sweepstakes would get your contact info from a tweet, follow, like or whatever. Any thoughts on this?