If you are into You Tube, I welcome you to try out the Polish site called Wrzuta. It's full of videos, images and audio (flash player). I'll translate some of the UI for you below so you can start your search easily.
Once you arrive on the site you can put anything in the main search box and click on OK and it will perform a search across audio / movies / images database. If you want to search on a specific topic you need to select one of the ugly pink links on the side. Here is the translation for each one.
filmy means movies
obrazy means images
audio means music files (no need to translate)
I really like to use the site for music as they have a lot of European music that you won't find on the US sites.
Enjoy..
