There has been a lot of talk recently about Google factoring in page load speed into their ranking algorithm. How much this effects rankings and if it is weighted more than relevance is still a question that needs to be answered.

Here is a video of Matt Cutts explaining how page speed influences your rankings and if speed is now more important than relevance.

A tool that you can use to test web page loading speed is Webpagetest this will show you each part of your code and how long that part takes to load. You can then use this information to streamline that part of your code to improve overall page loading speed. There is one question that still remains, will this lead to webmasters sacrificing their fancy flash graphics and complex coding to impress Google with faster load speeds?