paper on Martian spiders
With the Odyssey results this is probably a good time to mention this. Peter Ness (who posts here sometimes) and I have had a paper published in the Journal of British Interplanetary Science on the spiders:
Spider-Ravine Models and Plant-like Features on Mars - Possible Geophysical and Biogeophysical Modes of Origin
Those interested can email me for an excerpt or you can get the magazine through BIS.