A few days ago the popular RSS feed reader for iPad & iPhone, Reeder, expanded its reach with a new app.
Reeder for OSX has all the same great features of the iOS version. It supports sending content to the 3 major reading services (Instapaper, ReadItLater, Readability). You can also email and tweet links, as well as customize the layout.
It’s $9.99 in the Mac Store.