The Future of Search Engine Optimization

It is important to keep up with Google's viewpoint on optimisation as the biggest Search Engine makes changes regularly. If you don't adjust and make changes to your website, you may lose vital rankings. A good example happened a couple of years ago when Google insisted on websites having automated sitemaps to make it easier for the Google spiders to find your website.
Below is a video of an interview with Matt Cutts, a Google Engineer, on the Future of Search Engine Optimization.