One thing I like about the new blog design and layout is the ability to post my latest checkins from Foursquare. On the home page, to the right, it displays the last 3 places I visited and checkedin to.
Why would I would let people see that information? Well, because I don't mind if people know where I am. I've found that being open about that kind of thing (1) usually doesn't really register at all with most people, but (2) sometimes leads to interesting and useful serendipitous encounters.
I've met a lot of great people simply because I have this blog and use it to share my perspective on things. People who don't care for my perspective don't read the blog, but those who do are sometimes drawn in.
And that turns out to be a good thing. If you have been thinking of starting a blog, or you have one but want to know more about how to make it more interesting and useful, feel free to get my book or check out OneHrBlog.com, which is the site that accompanies the book.