Recently, many people have been asking about the permissibility of blogs, i.e. online diaries - I'm sure many of us have seen and read them. I submitted a question to Mufti Nawalur-Rahman about them, the answer can be heard here:

Allhamdullilah.

The translation for non-urdu speakers (provided by brother salman):

Going to websites like these will not be permissible, because they contain personal matters and also they specify names/identities which can create a path for bay-hayaai (shamelessness), and unlawful relations, and It is a source that may leak out the faults/kharaabiyan "aayb" of muslims. It will not be permissible.