Its very nice to see the posts answering SEO. The concept behind ranking well in the search engines is to get more and more quality backlinks from relevant sites. Thats the funda of SEO.

Do dashes make that large of an impact over using underscores? A question since you mentioned it above, stymiee.

For Google, yes. Yahoo and MSN, no.

i am software engineer i want to start as a seo please send details .i dont know abc of it

Step by step is a pretty tall order. It's like trying to recite a book step by step.

In a nutshell, however, seo is only 4 basic steps:

1. keyword research
2. on-page optimization
3. off-page optimization
4. tracking results

It's the same no matter what Page Rank your website has.

Firstly, targeting right keywords for your niche;
Secondly, using your keywords according to below guidance:
I would like to recommend "search engine ranking factors" from seomoz.org.

Thanks,

First of all, you have to make sure that you are fine with ONSITE SEO setup, with the keywords, meta description, content and etc.

Then, you have to focus on OFFSITE SEO, that is link building, for that there are many ways, such as blog commenting, social bookmarks, forums posting, article submissions, profile creations, using web properties 2.0 sites, link exchange and etc.

SEO has changed a bit since 2006.

I like all the tips cited in here. Actually, I only know few of those tips but would like to try the other details. I know this can really help us in improving our site.

Every one has good sharing with us thanks a lot.