Wise words. If you don’t blog and don’t own your content, your content will be wasted sooner or later.
My content is important to me because of the main reason I write a blog: so I can find back and link to things that I think are important.
For that the content must be searchable (which many so called social networks aren’t) and each post has a permanent address.
Repeating the message across social networks probably makes me more than a broadcaster than a true social networker, but hey: that’s already way better than I used to be in the past.
–jeroen