I'd go with Aweber and feedburner, most of the Top sellers I know still make most of their money via e-mail - social networks are places to get to meet people not to sell products, so to convert those browsers/contacts into buyers you still need to get people double opted (with permission) into your e-mail list which means them choosing to sign up to updates or a course you run or a mailing list.
Igebadia - I agree with your reason for getting fed up with scams, but this is completely different to genuine shop sellers using a mailing list to get in contact with their customers, social networking hasn't replaced e-mail marketing it has just made it easier for business and customer to find each other.
A potential customer can go direct to a facebook fan page for example, but unless they are signed up to a newsletter of some sort the person is walking out the door without a reminder to visit again - if you paid to get that visitor you have just lost a buck or two - this is why most facebook apps will try and get you to hand over your e-mail address it's like a downpayment.
other note of interest: Most social networks are valued on the amount of e-mail addresses they have in their database and how targeted they are - this is why large networks are worth a fortune, not just because of the content or the community.