Good post from Matt Cutts regarding the updating of many elements of the Google definitions and documentation on subjects like:
- Doorway pages
- SPAM reporting
- And some more!
It is worth taking a look at the full post at http://www.mattcutts.com/blog/improved-seo-documentation-galore/ and also checking out the new reference documents.
P.S. does anyone really do doorway pages anymore? I guess so, maybe, from a long tail keyword perspective? Seems like a lot of work to create something that will (probably) just go into (what was) the Supplemental Results…