I checked it out and it looks pretty good! They allow up to 100 contacts without charge, and after that it's only $8 for 500, $10 for 1000 and so on with a sliding scale.
I know everybody mentions MailChimp as a good free provider, which I'm sure they are, but they state clearly they do not allow affiliate marketers or internet marketers. I wouldn't want to get all nice and setup with them only to get the boot when things were going well.
I read through Mad Mimi's information and couldn't find any similar stipulation. The only thing you can't do is "distribute illegal contests, pyramid schemes, chain letters, or multi-level marketing campaigns".
I searched here and found that only two members seem to have mentioned it, and given that they count clients from Squidoo, Microsoft and Virgin amongst their customer base, I thought this might be a stellar find for IMers.
I'll be trying it shortly because those prices are pretty darn attractive up against Aweber. I'll report back on my results when I get around to it.
LINKY: Mad Mimi Email Marketing : Create, send & track emails with Mad Mimi.
Oh and they have a 25% recurring affiliate commission. I suspect that "powered by Mad Mimi" link at the bottom of the email might be an affiliate link. If so, sweet.