I am surprised there is not a thread on this already so I will start it. The Official Charts website has had a major update and for chart fanatics its a real improvement. Greater search facilities for artists. You can now see charts one week after another with a next button. Before you had to pick the next week from a drop down menu. Each song shows its whole chart run as well. Take a look. Its quite an improvement.
http://www.officialcharts.com/home/