I've been using Reeder for a while and I like it, but I'm frustrated by my inability to manage my feeds(subscribe, unsubscribe, change categories etc.). Is there an app that will let me do that?
If all you need to do is make a change once in a blue moon, just use the google website.
however, if you do it constantly, you can try feeddler Pro (5 bucks) it allows subscription editing.
Perfect RSS Reader also offers subscription editing and is 2 dollars (sale price)
note: I havent used either program so I dont know how good they are for day to day reading of articles and speed to loading articles, etc.