Hello,
I am doing a research on
Black Hat SEO so I will know what do avoid when I promote my site. Here is what I got so far
- Buying Expired Domains
- Cloaking
- Doorway Pages
- Duplicate Content
- Hidden Text and Links
- Keywords that are unrelevant to the site
- Keywords Stuffing
- Link Farms
- Multiple Domains without Redirecting
- Pages that contant spyware and viruses
- Google Bomb
- Google Bowling
- Scraping
- Selling PageRank
- Using small images
- Spam Comments
- Spam Emails
- Spam Referer
- Spam Ping
- Sybil attack
- Too Many Links
- Using unauthorized software for automatic queries.
- URL Redirection
Anything I forgot to research or something wrong in my list? I hope you guys can help

...later I will compile
White Hat Methods.
Thanks!