What’s a mock-up?

On the Internet nowadays everything is either free of charge, or not. Either way — if anyone wants to gloat about something, it takes a lot of effort – NOT ANYMORE! Most of YOU already know that. MOCKUP – or rather a mock-up – is a kind of a photograph, an outline for items or an interior, where we can arrange or modify things in a safe environment.

Useful links for those that like free stuff:
http://freebiesbug.com/psd-freebies/mockups-psd-freebies/
http://www.pixeden.com/free-print-template
https://www.behance.net/carlosviloria
http://www.psdcovers.com/
http://graficzny.com.pl/tag/mock-up/

Links for the ambitious:
http://grafmag.pl/artykuly/tworzymy-mockup-ulotki-z-wykorzystaniem-obiektow-inteligentnych/