For the hobby psychoceramicists among you I highly recommend
http://www.enterprisemission.com
ciao,
'gene
P.S. There is indeed an interesting aggregation of weird shapes in the
Cydonia region, but none of it cries out 'I'm artificial!'. If
anything truly interesting will crop up, the lunatics will be the
first to report. I, also, have toyed out using xv and raw JPL
images. Great fun.