Have you ever considered how many times you or your customers use google each day?
Now, have you ever wondered how your way of using google has changed over the past few years?
Based on studies and research provided by a leading usability analysis company this diagram and the following information shows us how peoples habits have changed.

When you build your site and see it move within google you need to decide how valuable it is to you to find yourself on page 1 or page 2 and the various positions within those pages. If it matters and your competitors are being found in better positions than you, then it is worth reading this page to find out what your clients do online whilst viewing.
What this clearly shows us is that Google has become a habit and people have learned it and trained themselves to know its features and process.