The following is a tried and tested plan for getting real targeted and high volume search engine traffic. Certain steps may not be applicable to you, but the order is important.

Most websites are not built for S.E.O and will always struggle for rankings. Consider starting from scratch if your website has never had a lot of hits.

Get a good grip of your keywords for you particular niche, this is very important and will affect your results if you target the wrong keywords.

If your starting a new website, try to get hold of a aged domain, ideally with Google PR and with relevant back links.

The domain name should be in your specific field or niche area, the more relevant the better. Make sure it does not have a Google penalty in effect.

Have a website up as quick as you can, get some content on the site, after carefully considering the page names, to contain one of your keywords or similar long trail keywords.

For each page you only need to focus on the title and quality of content for S.E.O.

Your best tactic is to target as many keywords on as many pages as you can. The more you pages you have the better.

You will need some real quality content pages for you site, but regularly add as many pages as you can frequently. You should have lots of intelligent interlinking between pages.

The single most important factor to your S.E.O campaign is the number of quality back links you can get back to your website. Also get links to your internal pages.

The best way to build your back links is slowly and steadily. Its crucial that you get your anchor text within links just right. Using the formula here will reap dividends for your S.E.O campaign.

Use a number of different combinations for you back link text, you will need to make them look as natural as possible.

Get links form sites related closely to yours as possible, even if partly related it will be valued more by search engines.

As a minimum you should try to get links that are related or semi related to you niche.

Get your links from a vide variety of sites and networks of sites. If all you link come from the same site or sits on similar I.P address, they will be valued less.

If all the above is done properly, you will get a healthy amount of traffic. You can try to do it all your self, or life can made a lot easier if you hire a quality S.E.O, who should already be using the above steps for results.