Well.. this is a 17 megabyte pack of 22 skyboxes. it's all my skyboxes i've shared thus far, maybe minus one or two of the crappy ones.
Skyboxes:
Arid2, Barren, Bay, Blizzard, Cocoa, Divine, Dust, Gloom, Harmony, Kenon_Star, Morning,
Ocean, Paze, Pit, Serenity, Sleepyhollow, Sun, Tears, Tropic, Wasteland, Wrath, Yonder.
Copyright: Creative Commons (BY-SA) [Creative Commons Attribution-Share Alike 3.0 United States]
PS: Kenon cloudbox is included.