Thanks for the article, it was also interesting and inspiring to see your other ventures in diverse fields. Would like to connect 1:1 in the near future. Meanwhile, even I had done a similar comparison as I myself handle email marketing for my organization. Do check it out as well as for the readers of the blog since it covers 2 additional players.
A mailing list is simply a list of e-mail addresses of people that are interested in the same subject, are members of the same work group, or who are taking class together. When a member of the list sends a note to the group's special address, the e-mail is broadcast to all of the members of the list. The key advantage of a mailing list over a things such as web-based discussion is that as new message becomes available they are immediately delivered to the participants' mailboxes. A mailing list sometime can also include information such as phone number, postal address, fax number and more.