Has the blogging phenomenon passed its peak? According to this piece in the Sunday Times, maybe. It focuses on the number of blogs that go dormant - 'because their authors run out of things to say, have not got the time to write' etc. - but in any case it's an impression I've formed as well. Some of the earlier enthusiasm of both bloggers and readers of blogs seems to have cooled; several debates that occupied the political blogosphere have been gone over so many ways there's less life in them now, even if they haven't fully run their course; the very abundance of online comment may well discourage potential participants by suggesting that their voices are lost in the crowd.
Anyway, I note that 'the point at which most analysts consider a blog to be defunct' happens to coincide with my own rough rule for when I should take a blog off my blogroll - when two months have elapsed since anything was posted. Just before going away I completed another of those long marches through my links, removing blogs that had become inactive.