When you're still learning to master SEO or search engine optimization it is important to choose the right keywords to ensure success. The right keywords have enough monthly searches too be worth targeting, but also niche or low enough competition that your efforts are likely to be successful. For example if you sell cars targeting the keyword search "cars" is not a good idea. You will never be able to rank for such a high competition keyword and the traffic to your website would not be very targeted. A better keyword phrase might be "Toyota trucks for sale Phoenix AZ". Not only are your SEO efforts more likely to be successful but your conversion rate from traffic to your website will be higher with longer tail keywords.
To access Google Keyword tool for free simply sign up here https://adwords.google.com/KeywordPlanner
Type in keywords your customers might use to find your business and Google's Keyword tool will show related ideas and statistics for each keyword. Pay extra attention to any keywords that seem relevant to your business and have a medium or low competition rating from Google. Usually these keywords are easier to rank on the first page of search engines. Start with the easier keywords and as your website or blog begins moving up in rankings on Google and Bing you can start choosing more competitive keywords. Eventually you will be able to rank for new related keywords quickly as Google begins to see your website as an authority on certain keyword searches.
More tips on SEO, PPC, Selling & Lead Generation to come, so check back.