Can I put a telephone directory on my website?

I would like to have a telephone directory of local business' on my website. Do I need to have to permission of each business to post them on my website?|||http://answers.yahoo.com/question/index;_ylt=AsqJdEo_AsD1f_vDzTtlmgXsy6IX;_ylv=3?qid=20080416135641AA5bHCj