They try to prevent basic scraping... Well, this mentality is the problem. Including an active link at the bottom of a single "daily" cartoon would likely be

They try to prevent basic scraping... Well, this mentality is the problem. Including an active link at the bottom of a single "daily" cartoon would likely be the best way to attract people to the site. I certainly wouldn't object to this link and would just pass it along on my own web site. It would essentially be an open invitation to their web site that a lot of my users would accept.