Here is my Facebook page. People hold some pretty strong opinions about Facbook. Some see it as a waste of time promoting inferior form of relationships for those unable to maintain real world ones, whilst others see it as a great way to keep updated on what friends and family are doing.
Personally, I think that the modern world is hard on relationships. The ease with which we travel, the all consuming nature of our work and private lives, means people have less close friends, and weaker ties to traditional areas of support, family and community, than they have done in the recent past. The Internet is perhaps a way of partly making up for this, giving people new ways to make friends and maintain relationships.
Now whether Facebook need to mess with the privacy of 500 million people whilst doing that is another matter....