Of all of the factors that go into boosting conversions, landing pages top the list of most important. A compelling offer is certainly a must, but the content and layout of your landing page can make a significant difference in how many people stick around and actually respond.
There have been several discussions about On Page SEO, but is it really that important? Well, the answer is, yes! Knowing that you need to "on page" your site is sometimes easier said than done due to the overwhelming amount of information available on the internet.