Sharing RSS Feeds

I’d like to share my RSS subscription list with my students and perhaps have it be an organic document that has things added to it off and on. There used to be a service for sharing bookmarks and things like that but I think its since been discontinued. Anyone have a suggestion on the best way to do this (short of just making a list of websites)

If it doesn’t have to frequently update how about exporting your list as an OPML file?

I’d prefer that I could update is often. But thanks for the thought.