Google Information for Webmasters: Search Engine Optimizers
I picked this up from a thread over at Webmasterworld, where so far it is going down well. It is not really surprising to see Google doing something like this, but you have to admire their style.
As well as providing solid advice on how to avoid being ripped off, they also add the odd classic quote just to keep you entertained
Reserve the same skepticism for unsolicited email about search engines as you do for "burn fat at night" diet pills or requests to help transfer funds from deposed dictators.
Google - a company that really knows how to talk to its audience.