Online Business Building Newsletter – TalkBiz News

This is a good page that goes over how to confirm a double-opt-in subscription.

Use AJAX and PHP to Build your Mailing List [JavaScript & AJAX Tutorials]

I’ve been meaning to try out some AJAX for a while, but I’ve had a hard time prioritizing it. Hopefully this “dip your toes in” approach will help it happen .

Organic groups list manager |

This module adds mailing list functionality, so one might be able to effectively replicate the good bits of Yahoo! Groups.