This one's down to me! Please accept my apologies for this - I'll see to it that the developer responsible for this broken link is given 20 lashes (but only after he or she has fixed this problem).
You can also try to search for the page you were looking for:
2010年5月にこのブログを立ち上げました。主に ASP.NET Web アプリ関係の記事です。