SEO techniques are classified by some into two broad categories: techniques that search engines recommend as part of good design, and those techniques that search engines do not approve of and attempt to minimize the effect of, referred to as spamimg. Most professional SEO consultants do not offer spamming and spamdexing techniques amongst the services that they provide to clients. Some industry commentators classify these methods, and the practitioners who utilize them, as either "White Hat SEO", or "Black Hat SEO".Many SEO consultants reject the black and white hat dichotomy as a convenient but unfortunate and misleading over-simplification that makes the industry look bad as a whole.

In Seo ...

On Page Optimization

Meta tags
1- Title
2- Description
3- Keywords
4-Alt tags
etc.

Site map
Robot.txt
Image Devidation
Info.txt

Off Page Optimization

Search Engine Submission
Directory Submission
Yellow Pages Submission
Article Submission
Image Submission
Link Building
1-One way link
2-Link exchange or reciprocal link
3-Three way link
4-Banner link
5-Sponsered link

Forum Diss..
Mail Marketing
Advertisement
etc..