R3R is a reader for RSS, ESF and Atom feeds. It has a simple GUI that gathers your subscribed feeds on startup and displays them into a single list.
Ping.it Alternatives
Ping.it is described as 'With Ping.it you can manage the news and entertainment of the web all in one place' and is a RSS Reader in the news & books category. There are more than 100 alternatives to Ping.it, not only websites but also apps for a variety of platforms, including Windows, Android, Mac and iPhone apps. The best Ping.it alternative is Feedly, which is free. Other great sites and apps similar to Ping.it are Inoreader, Feeder RSS feed reader, RSS Guard and Fluent Reader.