I think there are "over 200 search engine optimisation (SEO) factors" that Google uses to rank pages in the Google search results (SERPs) and I guess the other search engines too have similar algorithms to rank pages.

Yes, every search engine have different optimisation rules

Above articles given by Oliver will definitely help you in finding Different Optimisation Techniques

Yes, every search engine have their saerch algorithms.



the belowe article could give you clear idea on Different Optimisation Techniques For Google, Yahoo and Bing

http://ezinearticles.

com/?The-Different-Optimisation-Techniques-For-Google,-Yahoo-and-Bing&id=4296190
http://www.

jazzou.

com/index.

php?task=view&option=com_content&id=982