Facebook is a social networking website that was original designed for college students, but is now open to anyone 13 years of age or old. Facebook users can create or customize their own profiles with photos, videos, and information about themselves. Friends can browse the profile of other friends and write message on their pages.
Each Facebook  profiles has a "Wall" where friends post the comments. since the wall is view able by all the users friends, Wall postings is basically public conversation. Facebook is provided each user to  set privacy sitting, which by default are pretty strict. for examples, If you don't added a certain person as friend. that person don"t  be able to view your profile. 

Facebook provided an easy way for friends to keep in touch and for individual to have a presence on the web needing to build a website. since Facebook make it easy to upload photos, videos, anyone can publish a multimedia profiles. If you are a Facebook members or decide to sing up one day, remember me use to discretion in what you publish or what you post on other users pages, After all your information is only as a public as you choose to make it.
Another feature of Facebook, which make it different form my space add application to your profiles. Facebook application are small program developed specifically for Facebook profiles. some examples including supperpoke  (which extents Facebook poke function)  and fun wall (which build on the basic wall feature ). Facebook have provided other many feature.
  • Update  photos, videos,.
  • See what friends are up to.
  • Get notified when friends like and comments on your post.
  • Play games and use your favorite app.