What are all the spam filters google have in place?

[sonnikiy]

it will be nice to watch out for ALL the spam filters that are in place already... tough question since google does not tell us what they are filtering for.....but here's my educated guess:1. Duplicate pages - multiple pages, subdomains, or domains with substantially duplicate content.2. Hidden text or links that match the pages background or cell/table color3. A disproportionate amount of links with the exact same anchor text. Over 90%4. Interlinking sites built for the purpose of PR manipulation.5. Meta Redirects6. Pages with irrelevant or repitious words7. Doorway pages created just for search engines, or other cookie cutter approaches such as affiliate programs with little or no original content. 8. Link exchange or "free-for-all" link programs. 9. Mouse over java redirectsNot all of the above techniques will get you banned but most will have no or little value to your rankings. I'm sure there are more filters....if I think of any I will post them.Thanks for that, i have been doing loads of link exchanges but have been using he same anchor text and description.Is this going to effect my rankings?Not if you get some more links that use different anchor text.pretty easy to trigger a spam filter,...one more to the list of spam filters is:- stuffing of texts in ALT tags.bet there are more..