The Online Newsletter

Any on-line newsletter should support a syndication standard like RSS 2.0 or Atom so people can easily read your news letter on mobile devices like the iPhone. In a series of posts I'm going to cover three possible ways of syndicating a monthly or weekly flyer.
Part 1: Google Groups, Part 2: Blogging, Part 3: Google Base

Google Groups
There are several cool features with Google groups besides providing a standard RSS or Atom feed for your newsletter. It allows feed readers to opt into a mailing list and access downloadable content that you could post. Other features that I'm not going to go into include the possibility to host a forum like discussion group, and web portal all with a customizable look and feel.
The first thing is to create a new group at Google Groups. The hardest part of this will be trying to find a good name for your group. You'll need to sign up for a Google account if you don't already have one.
Next we need to set this group to be a one way communication. We're making a newsletter not a forum (topic for another day). Go to your groups settings page and in the Access tab set:

 anyone can view
 only manager can view group members
 anyone can join
 mangers only can create pages
 mangers only can upload files
 managers only can post
 no moderation

Its a good idea to customize the look and feel of your group. Also you might want to set the categories your group falls into. Now you just need to add the news feed link on your home page. The link to your feed will look like this:

http://groups.google.com/group/<group name>/feed/rss_v2_0_msgs.xml

You can get feed icons from http://www.feedicons.com/ with code snippets to add to your homepage.