www.anywho.com
      Answer1:You can try web sites like yellowpages.com or switchboard.comThose places may not give you a direct e-mail address, but it should give you more contact information and if they have a web site then there will be a link to it.
      Answer2:Cant. Call.
      Answer3:Search for the business online, if they have a website it will show up.
      Answer4:google it
      Answer5:Search it on Yahoo.
      Answer6:You can usehttp://www.emailseekeronline.comIt works well for meHope it can help you.