Are blogs still useful?

In August 2009, I wrote an article questioning if blogs were losing their influence. In conversations over the last two weeks, I had reason to go back to it because I thought they were important things I’d said then which I need to check if they were still valid; if so, I thought they were worth repeating. I found the old article quite hard to read, although at the time, I thought this was a good thing. I felt people needed to work hard to understand my writing, that it would do them good. I don’t feel this way any more, I hope this is simpler.