This is not, and will never be, a comlete, ultimate, whatever list of the worlds best web cartoons. There might be even better out there, but maybe I don't care, don't have the time to check, or simply dont't like them as good as I like these ...
Please don't be offended if your personal favorites aren't here. There is no ranking here. Just a plain listing of those I like to read. And I'm a physicist working for the army who also worked as a cryptographic expert in the industry for a few years, so go figure!