boingboing rssfeedsspamassassintaintorg url httpboingboingnet85481344 date supplied aaron swartz written warchalking faq addresses shibboleths paranoia discovering marking using wireless connectivity illegal although lawyer dont think illegal make chalk marks sidewalk know lot hopscotch players whod worried well immoral warchalking helpful service assist people finding something need internet connection link1 discuss2 1 httpwwwwarchalkingorgstory2002922223831236 2 httpwwwquicktopiccomboinghvsvyctze7hs tue 24 sep 2002 080039 0000 warchalking faq