Michael McGrorty wisely points out that even though blogs have become as ubiquitous as the cell phones attached to our heads, you only have to read them if you want to.
...the weblog is not in the public eye; it is not some electronic busker, banging away on a drum outside one’s window in the small hours. To read a weblog a person has to desire to; the act entails a series of conscious, positive actions, even more than would be required to read the content of a magazine. The weblog is a hidden thing that can only be uncovered by design and effort. Nobody has to read a weblog. In fact, most of them are hardly read by anybody. They are certainly not like billboards screaming from the roadside, nor as some have put it, like graffiti in a washroom..." Library Dust April 28
By the way, I relate to Michael's characterization of blogs that persist as a possible indicator of authors "in the grip of some strange compulsion." Library Dust is approaching its first anniversary ... and LibraryLaw blog marks its first anniversary at this location today. [update: to find oldest archives, for Typepad blogs like this one, click the word Archives on the right - you'll find months older than those listed]