Boston Globe Online / Business / Pyra Labs at the forefront of Weblogging phenomenon "As of last week, 473,000 people had used Blogger to create their own Weblogs. Williams figures a quarter of them actually update their blogs regularly. Basic blogging is available for free, complete with your choice of attractive visual layouts. If you already own space on a Web server, you can have Blogger publish your stuff there. Or you can use the free Blogspot service to publish your thoughts."