Quoteing jim / weirichhouse.org, on Mon, Nov 15, 2004 at 11:44:55AM +0900:
> The ExternalLinks page did at one time have an explaination of how to 
> represent external links.  It was expressed as a Ruby algorithm on the theory 
> that the casual spammer wouldn't/couldn't read it. Someone removed the 
> description because they felt it made the information too readily available. 
> At the time, I let it go, but based on your feedback I've restored it.  Take 
> a look and see it it is ok.  It should be plain enough to anyone with a ruby 
> background.

It looks great, particularly the note about existing links.

Thanks,
Sam