Blogging is not sharing - blogging is a GET, sharing (in the Facebook or Twitter formats) is a PUT.
To read new posts I'm interested in, I have to remember to bookmark and revisit the blog regularly. I don't have a convenience glance-view of what's new in my personal blogosphere. RSS was intended to solve this, but never really had much mainstream uptake, and I don't suspect it will now either.
The real addictiveness of Facebook and Twitter come from the fact that they are capable of constantly providing you with a stream of interesting content, filtering out that which you don't like and floating up that which you do (the mechanisms for this between Twitter and Facebook are quite different).
Until blogging can have the same thing (tumblr I suppose is somewhat like that, but is still somewhat of a fenced yard for its own community), it won't be the same as sharing in the modern context.
To read new posts I'm interested in, I have to remember to bookmark and revisit the blog regularly. I don't have a convenience glance-view of what's new in my personal blogosphere. RSS was intended to solve this, but never really had much mainstream uptake, and I don't suspect it will now either.
The real addictiveness of Facebook and Twitter come from the fact that they are capable of constantly providing you with a stream of interesting content, filtering out that which you don't like and floating up that which you do (the mechanisms for this between Twitter and Facebook are quite different).
Until blogging can have the same thing (tumblr I suppose is somewhat like that, but is still somewhat of a fenced yard for its own community), it won't be the same as sharing in the modern context.