Nowadays, more and more people use facebook , a popular social networking. FB brings in many great advantages to the youths, the adults as well as to the business men. First of all, Fb is a website which allows us to communicate easily. It provides several features such as chatting, personal messaging and photo sharing, which enables us to share information with other facebookers conveniently. We can send pictures, videos and even some sweet greetings for someone we like. Besides, we can re-connect with old friends or someone who we have lost touch with for a long time. With the search function of fb, we can rapidly search for by entering the key words such as his/her name or address. So, It is really amazing. In addition,people can use fb as an efficient place to advertise their products. We can only sit in the front of the computer, upload the advertisement and then enter share putton .In a few minutes,this advertisement will spread worldwide like wildfire. Thus we can save money instead of advertising it on the mass media. To sum up, fb is a popular and useful website for everyone to communicate,re-connect with old or lost friends and promote the businesses.

Nowadays, social network is very popular. Many people use social network like facebook, twitter, instagram,... Besides the advantages, there are some disadvantages. Using social network too much is not good for your health, especially your eyes. If you work with computer too much, your eyes can be weaker and weaker. In addition, if you sit too much, you will be fat. And you can have a lot of social network's friends but you won't have a real one. You should hang out with your real friends, not just friends are on the Internet