How does loading speed effect your Google rank?
A fast loading page has better changes to rank high in Google than a page which loads slowly! You are not going to score a number one position in Google just becasue your site is the fastest in the world. Relevance of your content will always be the most important factor for Google, but a good user experience (ie a fast loading website) will help you rank better than competing site that are slow. In the video below Matt Cutts from Google explains how they use page loading speed as one of the factors to rank websites by.