I took all of my stash out and tried to organize it today. How very humbling. Here I thought I had done better about acquiring yarn. Well, I probably have not been acquiring yarn but I'm not using it up very quickly either! There was quite a bit off stuff in there I had totally forgotten about. Yarns that need projects! Not to mention yarns that need loving homes. I photographed what needed photographing and put it all in Ravelry. My grand total is now 39661.5 yards, or 22.5 miles of yarn. That doesn't count all the partial balls I have hanging around, nor does it count a kilo and half of the lightweight softball cotton I got from Kristi, because I don't know the yardage on that yarn and I can't find that information online anywhere. So, the estimate is a bit short.
It may still be smaller than some other people's stashes, but it sure looks like a lot of yarn when it's spread all over the living room.
the sheep free knitter 
Good pics! I'm having a really hard time keeping my stash counts updated in ravelry, although they were correct when I entered them in. I'll really be happy when there's a way to subtract what I used for projects from my stash automatically rather then having to go back and fiddle with the amt remaining to show what's still left. So much of the yarn I own is either specifically slated for a project (like my KnitPicks tulip socks – I'm not really wanting to enter the 6 skeins in as stash and then have to enter them again on the project page) or are partial skeins from another project I already did!
Yes, I wish the projects would deduct the yarn from the stash. I also wish you could select yarn from your stash when you are entering a project. I have a feeling that is something Casey is working on, at least I really hope he is!