Riding home on a train from New York City to Long Beach (NY) gives a creative mind a lot of time to think through a variety of topics, and form a variety of opinions on those topics.  In the current wired world, there are many different methods of bringing those thoughts to both friends and others via tools available via the Internet.

"I find time (to write) in airplanes, taxis, and while riding the train.  I will write myself articles on the Blackberry, email to myself, and publish (to a blog) when I get home" Hunter Newby

Blogs are becoming a very popular way of bringing your story to both your friends and the rest of the connected world.  Friends who read your blogs (or email), tend to have fairly high confidence that what you write is based on some level of fact.  Or they simply enjoy reading your accounts of events happening in your part of the world.