The best thing in search engine optimization is it gives quick and good result.
always use dofollow links and increase no of back links.

Search engine optimization suggestion is that first promote your site in your local search engine then other search engines.

If you promote your site in Google then concentrate offpage optimization more if you promote your site in yahoo then concentrate onpage optimization.

search engine optimization is used to increase the quality of traffic to your website. SEO work as an internet marketing strategy look for how search engine work and which people search for.