The above suggestions connect to some wonderful sites.On the opening page of this site http://www.mudcat.org on the lower left side is a "LINKS" connnection
Follow it, and you are in for a holiday season of fabulous browsing, links, leading to links, leading to links....and LOTS of musical notation.
For starters, What Are Your Instruments?
Are there any specific "styles" or "countries of origin" you are seeking?