Running a successful multi-site install requires knowledge of how Drupal handles multiple sites and how various features of Apache can be leveraged to make the multi-site much easier to manage.
The video at this link provides a great deal of detail and comprehensive conf files for an Apache multi-site install of Drupal
Video about Multisites vs. Multiple Sites at GotDrupal.com
This is another video that shows you how to install a multisite
Installation multisite de Drupal at Youtube (drupal 6.x on Mac os , French).
There is another video in english : http://video.google.com/videoplay?docid=5832886805997118688
Comments
Clear and simple
I found the 10 minute multisite tutorial, http://drupal.org/node/138889#comment-2510252 to be clear and to work for me.
Not trying to spam for this one, I just spent way to much time trying to get other examples to work. I hope this one saves you time.
10 minute multisite video
This video works for me.
It has, for me, cleared up many problems and misconceptions and is a very fine instructional.
I took screenshots to study parts I'm not sure about and will revisit the tut again.
Thank you
I think this is more like
I think this is more like half an hour but has some fairly useful suggestions about configuring apache that apply to non multisite installations.