Apparently quite a few JW's feel that inviting people to the Memorial via CraigsList is effective witnessing. You know they counted their time typing out the free ad, too!
EDIT: well, it won't let me post the Google search url, and if I convert it to a TinyURL.com URL, JWD shows it as URL blocked.
Go to Google and put this in the search box:
"Kingdom Hall" site:craigslist.org