Google gets upset by Black Hat.
Beware of using Black hat techniques in your rush to to rank number one on Google search.
If you thought you were " too cool for schoool " and implemented some of the following tactics to jump up the rankings and get a million visits a day on your website, Google may just hit you hard, knock you down, and if you don't fix up they will knock you OUT!
- Selling or buying links
- Doorway pages
- Unnatural links
- User generated spam content
Read this great article on searchenginewatch.com 12 companies that were hit hard by Google.
Even the Big Boys mess it up sometimes