I realize this isnt a standard askhistorians question, but I'd be very interested in where my great grandfather was buried when he fell, and I thought this might be the place where someone knows how to find out.
The last time his family heard of him was late January 1945, when he was stationed somewhere near [Częstochowa](http://en.wikipedia.org/wiki/Cz%C4%99stochowa] in Silesia, Poland.
He was most likely left behind to slow down the russian advance, and to sace the asses of his superiors.
Yes, there is, though results are not guaranteed. This link will direct you to the German War Graves Commission website. It includes some 4.6 million entries. Here is a rough translation of the search box. I made a dumb mistake, the second 'birthday' entry should instead read 'place of birth.'
Viel Glück!