I have more and more friends on Facebook year after year.
Some of them are my friends. Some of them are my old friends whom I lost touch for years.
Some of them are friends made during functions and meetings. Some of them are friends made from the Internet forums.
Some of them are friends of my Internet friends. I did not meet them and do not know them well.

I started to spend more time on Facebook after the number of friends increased. Besides, sometimes it caused me some troubles.

My friends know that they should not telephone me unnecessary even if they have my mobile phone number of my telephone at home.
I dislike those friends whom I know from the Internet break the rule.
Once there was a Facebook friend called me on my mobile phone and told me about the personal affair of another Facebook friend. It was a great taboo she violated. I have no time for gossiping. What is the object for talking about other's personal affairs? Besides, I dislike people call me unnecessary on my mobile phone.

I concern of my Facebook friends. I help them when necessary. If it is not suitable to discuss by posting on the Facebook wall, I will send the private message. I tried my best to understand the problem and provide advices.

Whenever I read any negative posting, I would give my encouragement to help the person. But if the person posted the negative postings day after day even there were many encouragements and advices from friends, I would block the person. Everyone has the happy hours and bad times. We tried our best to help friends. But I do not like to be influenced by the negative postings.

The private message on Facebook is like my mobile phone to me.
There was a Facebook friend sent the greetings everyday in the morning, in the afternoon and at night. I explained to her that I made use of the Facebook message to discuss and exchange ideas with overseas friends. I advised her NOT to send the greetings everyday. She did not take my advice, so I deleted her immediately.
I do not like to see the reminder on Facebook informing me that there is a message for me and later find out it is an unimportant picture.

I used to block those friends who liked to post exposed pictures.
I am not a hypocrite. I love restricted art too. But we are of the different tastes and I am not keen to see at all.
Besides, I have some young adult friends. They should not see those pictures.
Other than the pictures, I take note of the language used too.

There is a saying that "One takes on the colour of one's company".
I reject contamination. I also wish to help my friends to reject contamination too.