I found this link while rooting around another forum, it covers Ford, Mercury, and Lincoln's (I think) from 1992 till 2002. Granted that doesn't cover most of us, but I figure someone could get some use out of them.
http://www.fordcds.com/
That's absolutely awesome, but don't get caught downloading the wrong torrents as there a many government machines now set up to catch piracy. My advice is to download it and never torrent again, or just download the haynes manual from one of many sites. Given is it is a great and useful link though.
Alldata only goes back to '82. I guess that's good.