Facebook is another online social networking service. Members can:
… create a user profile, add other users as “friends”, exchange messages, post status updates and photos, share videos, use various apps and receive notifications when others update their profiles. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists … (from Wikipedia)
1: The register interface: The most important is you need an email address to register, but you see also you can register to Facebook using your mobile phone number:
2: Now you have a chance to input your friends emails:
3: Actually you will be accessed into your Facebook account, but you have one more step: confirming. So go you your email and find out the confirm email which was sent from Facebook, open it and lick the Confirm Your Account button in the email:
The following is the member account:
You can use Facebook now, either from cell phone or PC.