Here are more technique on spamindexing, NEVER try to use it as they are already spotted out by most search engines, like Google, for filtering.
1. Hidden or invisible text - some webmasters generate some hidden text by using the background color with the text.
2. Keyword stuffing - repeating keywords in the content unnecessarily.
3. Meta tag stuffing - similar to keyword stuffing, just repeating the keywords in the meta tag and some keywords are unrelated to the content.
4. Doorway page - serving different pages to endusers and search engines.
Doorway Page & Spamindexing
SEO for Google
