Red Tape Chronicles has a comment on an increasingly common Facebook scam, (full article at Here) and suggests reporting frauds to the US FBI at IC3.
You might check the FBI site and see if they'll let you make a report.
Websites listing (and selling) email addresses are actually quite numerous, and although the price per address has been dropping recently there are still lots of such lists available. Gettting a particular one closed down probably is unlikely; but giving your bit of evidence to those who can work at it may be helpful.