I started blogging over the past couple of years and initially used blogger.com for some time, then switched over to Wordpress.com on the advice of a friend. Since then I have been blogging on wordpress and found it pretty good.
For starters, blogging on Wordpress.com is pretty simple. All you need to do is select a template for your blog and then start posting blogs. You get to customize portions of your site to add polls, calendars, author information etc. Administrating a wordpress blog is also pretty easy with a dashboard that allows you to control all the aspects of the blog.
One of the features that I love on the wordpress blog is the hit count. You can actually track it based on daily, monthly or annual hits. You can also get post wise hit count which is pretty good to understand the kind of articles that attract maximum interest.
As an administrator you can control the articles that get posted on your site, the comments that get posted as well as the authors who can post on your site. You can also maintain multiple blogs and track all the activities across these multiple blog sites through a single dashboard panel.
But the good news ends there. Currently wordpress does not give advertising revenues to the free blogs on the site. Even if you have a decent traffic, if it is less than 25000 hits a month, you cannot add advertisements and earn revenue from your blog. If you have more than 25000 hits then wordpress has started a Beta program to try out ads.
This is a major letdown compared to other blog sites like blogger.com which allows adsense or other advertising agencies to display ads and play the bloggers for this.
Overall it is a good site to start off your blogging experience. But once you want to get serious about your blogging and earn revenues from it, it is time for you to migrate it to other sites.