>Facebook profiles I know tend to become echo chambers at a rate far higher than that of blogs and personal sites
I rarely if ever update my Facebook profile, but I still think it's a fantastic site for networking, finding events, and looking up email addresses. I completely disagree with the article that blogs\personal sites and facebook accounts are substitutable goods in competition with each other. For many users, they are in entirely different product categories.
Yes, but you don't use Facebook to communicate, you use it to facilitate other forms of communication. IMO, even as you praise it your actions recognize how limited it is as a communications medium.
I rarely if ever update my Facebook profile, but I still think it's a fantastic site for networking, finding events, and looking up email addresses. I completely disagree with the article that blogs\personal sites and facebook accounts are substitutable goods in competition with each other. For many users, they are in entirely different product categories.