Those are ports of the docks released by vanGenie, this release is under his permission; I only ported the docks to XWindowsDock.
Bish dock: [link]
Both versions of Epic dock: [link]
NFR dock: [link]
OMG dock: [link]
Ossom dock: [link]
Icons used on the preview of the docks are the following:
Cake: by Iconlicious.
Videorama: by Nikolay Verin (aka ncrow, what an awesome release men!).
iTunes: by Jonas Rask.
Transmitt plane: by Jonas Rask.
Photoshop: by Iiro Jäppinen.
Iconfactory icon: (iconfactory webpage logo).