This page should be linked back to the original topic:
STUDY: artificial sweeteners can raise blood sugar levels more than sugar
That page includes links to the discussed study, and additional studies by that group are discussed.
Also, this topic has now been discussed on several science and skeptic blogs. Here’s a link to The Scientist. The article there is well written and helps to make the point that the study authors are far more reserved about their findings than others are. They are quite clear that these are initial findings warranting further study.