Elsa Mucerino on Preparation for Venice underway!!

I was thinking of starting a blog and so i did some research in it on the internet and came across a lots of stuff that talks about legal issues and blogging. I am just not thinking about blogging about controversial issues, (my blog would concentrate on posts about books, films, culture, theater, music etc, and all materials would be solely my own opinions) so what legalities are involved with blogging?. Should I write a copyright please note or are blog disclaimers actually worthless?.