I guess it's easier to determine on the positive side for me. When someone contacts me and says "Hey, I saw your post on ________ and blah, blah, blah" I can put an actual $ value on certain posts ... epecially when I post a new thread with a particular offer like
http://www.gofuckyourself.com/showthread.php?t=670773
i do see clicks from my sig in my stats from individual posts too, of course - but those i can't quite quantify.
Bottom line though is I know i'm making money when posting every week and that posting has definitely helped brand my content business since I see lots of direct type-ins every day.
