what are blog do's and dont's

As far as i can remember, do's & don'ts for a blogs are infinite.... May be your question should be more condensed to get your doubts clarified :-)

Yup, the lists are truely infinite....

Post your blog for review, may be there people can tell you whats right and whats wrong with your blog 

I don't think there should be dos and don'ts of blogging as long as you are plagiarizing somebody's work. Blog away to your heart's content.