New List Builder "The List Machine"

I've just joined this new List Building service and I'm currently testing it. It's a matrix-based free email system. At a first look it seems very professional, with a lot of promotional tools, giveaways and help. It's free and I can't see any hidden costs - so, again, give this one a go too! http://www.thelistmachine.com/index.php/essjayar There are other free list-builders on the net and their success always stands on how many subscribers they attract. Current favourite is "ListDotCom" (I always get new subscribers whenever I run a message via this system). Another worth trying is a front-end for "Opportunity.com" called Bulletproof List Builder)