Hey, I like the site quite a bit, it is helpful as I have successfully found a song so far :). and I like helping others as well.

My suggestion is basic tips on finding tracks; I know a couple such as:
A] going to IMDB and finding the movie's soundtrack info or looking at the end credits / B] search engine site for lyrics, etc.

But like another idea would be to maybe link this in the "Post a Sample" action just to make sure the person has a better idea.