MedWorm.com - RSS Feed Aggregator For Doctors

UK based MedWorm is a medical RSS feed provider and search engine. It's geared towards doctors who, what with their increasingly busier schedules, have little time to spare searching for the latest medical news. With MedWorm the news is delivered to them in a concise and timely manner. They're also getting only the very newest information, so they don't have to wade through irrelevant content. So far the site indexes over 4500 sources, mostly medical journals, government organizations, and medical associations. MedWorm users can subscribe to RSS feeds based on medical categories via the site itself, or they can use another RSS reader if they choose. Users can submit their own feeds, but they are screened and categorized before being added to the site. Searches may be filtered by news, organizations, consumer, blogs, and journals. The service is free for everyone.

"The medical RSS filter engine
over 4500 authoritative RSS feeds go in
hundreds of new RSS feeds by category come out"

MedWorm supplies a great service for doctors. Medicine is a specialty which thrives on knowledge; whereas traditionally doctors have had to research themselves or attend seminars, the advent of the web and community-based technologies means they can easily find and access relevant info, thus saving time and patients.

How will Medworm stay afloat? Will they add premium content for a price? What sources are used?