Excellent question. Many have trouble with this, the reason being that you cannot attach a post via the regular Google Groups interface, but you can via the forum interface. If you view this group at https://groups.google.com/forum/?hl=en#!forum/saigonbusiness And you click "New Post" you will see an "Attach a file" button, where you can attach an image or file. However, keep in mind that people who receive the posts via a digest email do not get the attachments and they have to specifically open your post in their web browser before they can see the attachment. For this reason many people prefer to just upload their image to a hosting service such as Flikr, Picasa, Photobucket or Imgr etc and then paste the link to the photo into their post instead. This way the people who receive the group via email can see the link in their post and click on it to view your pictures without having to need the group on the web. I recommend that everyone who uses Google Groups switch over to the new interface by clicking "View this group in the new Google Groups" on the right hand side of the page on the group's homepage. Then when prompted, tell Google you want to switch to the new style. The new style is much more powerful and easy to read and manage and also allows you to add photos and other attachments.