Just wanna let you know that there is this new group called Siempre Fidelis [SF] who have started subbing for Naruto Shippuuden after Dattebayo dropped it. Currently, they release an SD and HD version of Shippuuden episodes every week. They are NOT a fast sub group but that is compensated for by the amazing quality of video and translation. Their work is superb and the best of all the groups I know working on Naruto right now. Check out their official website:
Their latest release is Naruto Shippuuden 107. You can check out their website for their previous releases too.