A while ago I have been asked by Myra to help out with her academic project on Euroblogs. I think she has done an excellent job of tracking down Eurobloggers (active and passive) and managed to put together an interesting thesis. The summary is now available here.
In terms of numbers, she dealt with 9 “blog readers”, 49 “active bloggers” and 61 “blog commentators”. I thought there were more, but this still makes up for a very large amount of Euroreading:)