SEO Promotion Techniques

I was trying to search for some basic standards that each SEO company tries to follow to optimize a site.. or let me put it other way.
Is there any specific rule or guidelines defined ?

My next question is :
How do SEO companies differ in their approach for SEO ?

 

I know that SEO companies make sure that all of your html validates and is easy for spiders to read and follow.

 

They also try to spend your money effectively

 

Most companies aren't going to give away their exact working method, though you'll find the majority usually work losely to the following

Site/Code Assessment
Usability
On-Page Optimisation/Internal link structure
Off-Page Optimisation

 

Well written text that includes key-words in title-tags, headings and links - without overdoing it.

 

they do link building, word tracking, keywords choice, and of course some html optimization / validation

 

It depends how much you pay.

Go for a cheap option (less than $500) and they will just submit to a few hundred directories, submit some articles and tweak the title tags.

Pay a few thousand $$$'s and you will get somebody who will look at your entire SEO strategy and teach you how to approach SEO the right way.

 

Dont we have any standard format, that any company follows ??

 

No, every company approcahes it diffenetly, though I think you'll find most loosely follow the formats posted above. Not many will give away much more than that.

 

As has been rightly put the whole SEO campaign depends on the budget you have allocated . The major component of the budget go in link building . So depending on the budget the number of links can vary .