On WebReference.com today there's a new tutorial getting you up and running with phpList for your mailing list (and campaign) needs.

The popular email campaign manager phpList is open source, free to download and easy to use. The company Tincan is the commercial sponsor behind phpList, which comes in two forms: a hosted solution or a download that you can set up yourself on your server. If you don't want to go through the hassles of setting up and managing the system, you should go for the hosted solution. [...] Otherwise, you could just follow this article to set up phpList on your own and save yourself a few bucks.

The tutorial links you to the download you'll need to get this mailing list software and the instructions on how to get it all set up. They show you how to create lists and add users to them and how to send a simple message to a list. There's a few things they also show you how to "hack" on in the code like automatically confirming subscriptions, not sending the welcome email and removing the "powered by" image in the default emails.