Latest P2P usage data

I would very much appreciate some links and what not to some fresh data of:

Number of users on different networks (eDonkey, Gnutella you name it)
Amount of data shared on different networks (number of files and so on)
Bandwidth usage(?) (I found here on Slyck that BitTorrent uses 60-90% of ISPs bandwidth)

Some articles I have found; are they still relevant?

http://www.slyck.com/news.php?story=814
http://www.slyck.com/news.php?story=881
http://www.slyck.com/news.php?story=1031
http://www.slyck.com/news.php?story=1040 (<- 60-90% thingy)

asdf

At least some data on Gnutella? plz?

I'd like a study that actually measures Winny. Not even the discussions about p2p in IETF seem to know about it or Share.