If you want to start your SEO campaign the very first thing you have to work on is to put together your targeted keywords. The keywords with less competition but more searches are ideal to begin your campaign with.

If your market is local or regional, the areas or cities with more population which are closer to your office are of the highest priority.

Keywords are key terms and phrases that your prospects would search to find you. There are plenty of keywords research tools or keywords suggestion tools the most important one is "Google AdWords Keyword Tool" that works based on real searches.

These keywords should be used in your link building campaign, as the anchor text of the links you are going to build for your website.

Analyzing your competitors also could be a good resource to find your best keywords. Your keywords list should get updated base on your performance on search engines on monthly basis.

You should usually use different variation of your targeted keywords including the singular, plural, reverse and etc.