I use both. For breaking news etc i use twitter (with list organized) but for other vlogs and aites i really care i use the Reeder RSS reader. Twitter seems a bit unorgaized and the fac i can't mark items as read is a bitflaw for me. I like the reeder approach.I used Google's Reader web app for over a year...until a couple of weeks ago, when I abandoned RSS entirely and switched to Twitter.