Web Tune-Up Pros

Some techniques that can get you banned from Google such as cloaking and using hidden text, or even buying links, can be legitimate when used in certain ways and situations, argues Eric Enge.

Determining when to use Google-sanctioned techniques has been the subject of much discussion lately, and it all hinges on what is being called "Intent and Extent"–in order words, what is your intent in falling for the dark side of the force (Black Hat techniques) and to what extent do you do such dastardly things on your site?

Eric doesn’t really have an answer, but he does give examples.