Selecting the right keyword phrases is the single most important aspect of any SEO campaign. Unfortunately, many webmasters target the wrong keywords. Too many of us target very general keywords like “real estate” or “internet marketing”. Although these terms get lots of visitors, it is unlikely that you will be able to rank highly for them. Then, even if you do, this type of traffíc produces very low conversion rates because it does not target prospects.
You will be much more successful, if you target keyword phrases that are 3-4 words long. These terms are much less competitive and have been proven to convert much better than keywords that are 1 to 2 words long.
Who do you think is more likely to buy; someone who goes to Google and searches for “ipod” or someone who searches for “4gb black ipod nano”? Obviously, the person who searches for a more specific phrase is much closer to making a buying decision.