
You can add this to your blog too: Add Windows Live Messenger to your Blog
It is a simple matter of going to the above live.com (obviously, log in with your Live ID) and using the simple online form to configure your Messenger web widget.
The really, really cool thing is that you can have either a chat window, or your presence live on your blog.
For more indepth how-tos, visit Aussie Angus Logan's blog.
If you like to chat and also enjoy helping others there is a great option for you. And it will not cost you a cent. For every conversation you start by using Windows Live Messenger there is a certain amount of money donated to your preferred charity organization - e.g. I've chosen the UNICEF. In order to contribute to our society this way you just have to add a special logo "I´M" in front of your name. There has been almost $150,000 raised so far.
You might also consider to star in a new MTV project that is starting now in order to promote this cause.
Windows Live Messenger has over 220 million contacts worldwide. It is popular for the wide range of services it offers. Apart from the traditional text, phone and video conversations users can play games (e.g. chess), chat with special agents like Encarta and share their photos and other files. All this is for free - as well as other Windows Live services.