Paul has come up with a good solution for developing categories in Blogger.
He is using a system called del.icio.us which is a web based bookmark system. It was originally developed so that you could collect links and house them on an accessible web server rather than store them in your browser. That way you can access them anywhere from any computer. But Paul has set up a set of del.icio.us “tags” for his blog and added a set of links to his toolbar.
del.icio.us is one of a number of web based systems of “social software” that help people organise information and communicate on the internet.