... and a personal site, too.

It may seem that I'm a web addicted: before I really know what my blog is meant for, I also added a personal web site, where I plan to record and organise all the relevant info that I don't mind sharing.
Which may not be the clearest of the declaratories, but it's anyway what I have in mind now.
Ok, I'm a web addicted ;)

What is the goal of a blog, today?

Sorry, I've no answers for that, for now. I have my XWiki, my FaceBook, my Google+, my personal notes and productivity tools in the cloud, my papers and my books. I can write, record, annotate, read and share anything from anywhere.
Why, then, should I have a blog? What's the purpose of posting a blog entry, today?
I have a few ideas on the matter, we'll see whether they do work, actually.