Google’s Keyword Planner free: This tool is intended for making plans AdWords campaigns, but it also is a good aid for SEO work. You can hone in for your product or service, narrow down to a product class, or even target specific destinations. Google provides old records on what people have been shopping, so the ad group ideas will give you insights on the terminology searchers use. You may be tempted to go for the high volume searches, but be cautious with this temptation. Competitive search terms are harder to rank for, and may not be phrased the manner your target buyer would search.