I am not Type 2, I'm T1, but for serious athletes like yourself, Diabetic Athlete's Handbook by Sheri Colberg is an absolute goldmine. It has all the advice you need and lots and lots of case studies of T1 and T2 diabetic athletes and how they manage some really serious, top-class training. You will get lots of useful advice here I am sure. But I find information in a book is often more organized and so easier to access (as well as having been reviewed, etc so it can be more reliable).