Once upon a time, blogs were conversational hubs. Posts were written to be commented, trackbacked, circulated, debated. Blogs were places you would go to. Strolling through cyberspace, you would visit A, follow a link to B, and engage in a conversation with C. Along the way, communities were created, friends were made, important discussion happened. Blogging required traveling and social interaction.
Then blogs became too many to be visited daily. RSS aggregators were developed. Blog posts were now coming to you when a blog was updated. It was easy to add another blog to the list. We found ourselves reading hundreds of posts a day. There was no time to visit blogs, leaving comments, think about what we had read. Gradually, the conversational aspect of blogging was lost.