What is the Best Way to Promote website by SEO ?

Facebook,twitter,Google+1. I used Craigslist to get traffic also. Back-link is also important

I hope many read Bruce's answer carefully.
Our businesses have learned to SPEAK clearly to our potential Market base through effective communication in all venues. Print, Broadcast, TV and the Internet all designed to funnel the prospect into a Direct Live communication session.
We do NOT design with SEO in mind but our Internet Content is found by many seeking answers organically.

Amazing the false outdated information being passed around..... article marketing, press releases, backlink building, directory submission and the likes do NOT work anymore. Thats not what SEO is about. In fact those are the VERY practices that get most people penalized - and then they claim "we were following the rules".... no they were not. Manipulating search results by laying backlinks is NOT "following the rules".

Googles webmaster guidelines are vastly nothing more or less than forums cr

Google always tell a lie. If you have some experience in seo. SEO is a r 7 D field.

Do seo according to Google guidelines

social bookmarking submissions and directory submission

True.. Follow The Latest Updates And Work Accordingly, do lot of activities on online networking sites.

After Penguin 2.1 update content on your website should be unique, fresh and effective. You can do social bookmarking, article submission, blog submission, press release link building activities. You can also do SMO activities to get more traffic on your website.

follow the webmaster guidelines and make reasonable back links.

Read Google webmaster guide lines for link building.

Content is the king according to the Google which is the major search engine today. Try to make unique content any promote your content on the social networking sites. Promoting the content on the social networking sites helps you to drive more traffic thereby helps you to improve ranking.

Assuming you're already done your best to edit your website's content by removing barriers to indexing activities of search engines and adding free original content, adding a Google Adwords (Pay per click PPC) account will help a great deal. It's pretty easy, you can fund your account with a certain amount, choose some keywords and you will appear in the sponsored results as well as the organic search results.

you can must put fresh and effective content on your website and do social bookmarking, press release, article submission.