Randy Charles Morin has quietly been building a user-friendly service called Rmail that lets people receive RSS feeds via e-mail (similar to Feedblitz). With 20,000 users, 1M e-mails being sent out each month and more than $1,000 of advertising revenue a month, Morin hopes to be closing an angel round soon. We recently did a Q&A to talk about Rmail's origins, features, and strategic growth plans.
Update: Rick Segal has a good post on Randy and Rmail.