Leaks Help Record Sales?

Lil Wayne's a money freak...his old stuff is lightyears ahead of the random crap he pulls out nowadays...I hope Eminem doesn't go in that direction but if Relapse is anything to go by...then I guess I won't be listening to him much more

also you mentioned some good songs in the not-so-popular list...my favs though would be Lose Yourself, Mockingbird and Cleaning Out My Closet - the first one was a very big hit while the other two were alright hits (they are epic songs though imo)

Leaks help the record companies to figure out how much they should market an album. If they are paying attention to download figures that is.
I wouldn't say it helps sales directly, but indirectly, most probably if they know what they're doing.