Google has just updated their Google Webmaster guidelines page with clearer and more detailed guidelines.
If you scroll down to the quality guidelines portion and the “Quality guidelines – specific guidelines” section, you will notice that those specifics are now hyperlinked to more details.
- Avoid hidden text or hidden links.
- Don’t use cloaking or sneaky redirects.
- Don’t send automated queries to Google.
- Don’t load pages with irrelevant keywords.
- Don’t create multiple pages, subdomains, or domains with substantially duplicate content.
- Don’t create pages that install viruses, trojans, or other badware.
- Avoid “doorway” pages created just for search engines, or other “cookie cutter” approaches such as affiliate programs with little or no original content.
- If your site participates in an affiliate program, make sure that your site adds value. Provide unique and relevant content that gives users a reason to visit your site first.
I may update this post with more information, after I dig deeper into the pages and listen to Matt Cutts at Google talk about it on the Penalty Box Summit session at SMX.