• Keyword stuffing: Packing long lists of keywords and nothing else onto your site will get you penalized eventually by search engines. Learn how to find and place keywords and phrases the right way on your Web site.
• Invisible text: This is putting lists of keywords in white text on a white background in hopes of attracting more search engine spiders. Again, not a good way to attract searchers or search engine crawlers.
• Doorway Pages: A doorway page is basically a “fake” page that the user will never see. It is purely for search engine spiders, and attempts to trick them into indexing the site higher. Read more about doorway pages.