Hello friends I just want to ask from the expertise of SEO that if we have to choose a single channel for SEO what will be the best channel?
What do you mean by channel? By the way, the thread is posted in wrong category. It should have been posted under Search Engine Optimization.
Is "channel" you mentioned is method? If so, there is not just the one best way or method to do a best seo. You have to mix them and keep balance. Over done would give you site a pain in a long run. 1. Directoy submission still a worth to do even directories value are much decreased these days. Do not forget to vary your anchor text link. 2. Press Release can give you some big link sources if you do it in a right way, your PR itself has to be sparkling either. 3. Add / Update content regularly, unique only 4. Links from other sources are still important, even some nofollow such as blog comment, forum signature, etc.
Once you have all your on page factors in order such as a good title tag and a description and a header tag or two ... There are many methods. The best overall method is content on your own site that includes factors like keyword density and choosing proper keyword phrases when building or adding to your site. Then you will want to be working on back links form other sites, blogs, forums, social bookmarking and forum profiles or signatures.
I am unsure what you mean by channel. SEO is a variety of different elements that when combined, create good rankings
If you are talking about the methods and solutions used by the global webmasters, concentrate over building links for your website as it will generate some short as well as long term results.
best SEO Channel is Link building slow and slow. Don't buy links. Write good articles on different topics and submit url in good ranked directories