There really isn't much I can add to the Google _nomap. hijinks.
We’re introducing a method that lets you opt out of having your wireless access point included in the Google Location Server. To opt out, visit your access point’s settings and change the wireless network name (or SSID) so that it ends with “_nomap”. For example, if your SSID is “Network”, you‘d need to change it to “Network_nomap”.
To get started, visit this Help Center article to learn more about the process and to find links with specific instructions on how to change an access point’s SSID for various wireless access point manufacturers.
As we explored different approaches for opting-out access points from the Google Location Server, we found that a method based on wireless network names provides the right balance of simplicity as well as protection against abuse. Specifically, this approach helps protect against others opting out your access point without your permission.
Finally, because other location providers will also be able to observe these opt-outs, we hope that over time the “_nomap” string will be adopted universally. This would help benefit all users by providing everyone with a unified opt-out process regardless of location provider.
Parislemon has a nice summary.
However, I did create a commemorative t-shirt that you can own for a low low price.