Years ago, if a teenager had some problems in his life, he might write about them in his diary. Now a teenager might surf the Internet and write about his problems in his blog. In some ways, a diary and a blog are almost the same. What makes a blog different from a diary?
___________1 I have a younger sister. Sometimes I read her blog. She writes about things like waking up early for swimming practice and not studying enough for her chemistry exam. When I was her age, I wrote the same things, but only in my diary. After I finished writing, I would hide (藏）my diary in asecretplace because I was worried that someone else might read it！
Blogs have good points, of course. If I feel lonely and write “Nobody cares about me" in my diary, no one will know about it. However, if my sister writes the same words in her blog, her friends will quickly reply and tell her how much they like her. The blog helps people keep in contact (联系）with their friends.
A blog is public so it has some bad points.
___________2 If I am angry with a friend during school and write something bad about him in my diary, he will never know. However, if my sister writes something bad about a friend, that friend may read her blog and cry.
___________3
If people are careful, writing the blog is really a good way to communicate with others. However, I still enjoy my diary!