The Evils of Blogging - Blogging Banned in the Yeshiva World?

I've heard word that those who are from the "more" observant world have been told to stay off of blogs. They have been warned that they are evil. I wonder if they were talking about blogs that talk about sexual abuse and assault? I was playing around and found the following blogs. Are these blogs banned too? Many are from Lakewood, NJ

1. Mirrer Yeshiva News
2. Divrei Chaim
3. Emes Ve-Emunah
   
4. Orthodox Apprentice
5. Orthonomics
6. Yeshiva World
7. Yeshiva Orthodoxy
8. Yudel's Stake
9. Yeshiva Parents
10. The World of the Yeshiva