You're incorrect. There are two related issues here: access to Craigslist and potential IP issues. If Craigslist tells you not to access Craigslist, presumably

You're incorrect. There are two related issues here: access to Craigslist and potential IP issues. If Craigslist tells you not to access Craigslist, presumably there is some sort of legal remedy if you continue to do so. As a result, Padmapper no longer accesses Craigslist. Neither Padmapper nor 3taps access Craigslist, so this is not an issue. If Google told 3taps to stop accessing their cache in that manner, they'd probably have to stop. As far as IP goes, Craigslist does not own the copyright to the posts on their site. The posters do. Even if Craigslist wrote all the postings themselves, the factual information (price, number of bedrooms, location) could still be copied because facts are not protected intellectual property. I don't see how you're any less of an armchair lawyer than we are, and to top it off, you're wrong. (EDIT: Oops, I've come across another one of your comments where you say you're a lawyer.)