If you don’t want to read this post about how to make your website better, you can simply watch the videos and get the same information.  In any case, this is an easy to read blog that goes into great detail by giving you 20 itemised tips of things that you can do to vastly improve your website.  It covers such aspects as improving site design, researching keywords, reducing bounce rate, improving site usability and organising your information better.  There is plenty of detailed information here with links to other pages which contain more juicy titbits.