Actually, I’m not entirely sure there is a European blogosphere yet, as most blogospheres seem to develop in their respective linguistic markets, complemented by a couple of English language (non UK) blogs operating in the same markets. Thus, the European blogosphere, narrowly defined, is still a rather tiny community.
But even when using the term in a broader sense, our blogroll, assembled largely by David, is certainly one of the better starting points for anyone attempting to discover the impressive diversity of the European blogosphere. But it is self-evident that even the most extensive individual blogroll can hardly give a complete picture. If at all, only a collaborative effort could chart those parts of the European blogosphere not sufficiently visible.
In this spirit, Loic LeMeur of sixapart Europe has put up a (currently private) wiki page determined to draw a sufficiently complete map of the “European blogosphere” (… that collaboration is important in this respect may be illustated by the fact that Loic failed to remember afoe for his list despite our nice chat about the future of blogging in Frankfurt last year ;)).
So have a look if your favorite blogs are already included.