Watching people use the Web 2.0 medium called Facebook

In our upcoming assignment we have to discus and educate about a Web 2.0 medium. For my medium I chose Facebook a popular social networking site. Facebook is used mostly by teens and young adults (15-28) but is increasingly being used by adults or parents of these teens. I had observed this scenario when I had gone home for break. When I came home my mother was uploading photos of my cousins so that her friends can see. First I did not even know my mother had a Facebook let alone even know what it was. When I asked her why she had signed up for this medium she told me "so I can be more connected with my friends". I was a little blown away, to think my mother is becoming as connected as me. Then I thought about why I signed up in the first place and it was for similar reasons of connecting with friends and new people. After seeing my mother I went to my brothers house to see my nephews; what do I see my little nephew talking to his friends on Facebook. I think I was even more shocked to see him on Facebook than my mother, considering he is only eleven years old. I observed him for a little while to see what he would use Facebook for and found out he does almost the same things as me. He checks his mail, photos and looks at other friends profiles. So I asked him now why did you sign up? He told me "because every one has Facebook duhh!". I saw that this social networking site is turning into a cultural phenomenon reaching all ages and cultures in America.