Here's an interesting comment on The Information Security News blog from Clearwater Associates on using RSS instead of mailing lists to reduce your privacy risks. In short, if you don't have a mailing list that can be compromised, you effectively reduce the risk of having your mailing list compromised. And it gives complete control to your readers. Check it out here:
The Information Security News - Blog Archive - Editorial: How RSS can reduce privacy risks:
"Offering web site content updates via an RSS feed rather than by opt-in email can reduce the risk of privacy exposures. Because subscribing to an RSS feed is a 'pull' technology, it avoids the collection of personal information (email address, name, etc.) that would normally get collected in order to maintain a subscription to a site update alert, newsletter or digest..."