Go to http://outl.it/search/sources.  

This page lets you: 

  • browse sources that you can follow, including RSS feeds of preview content from major publications, individual writers and bloggers, and other voices
  • add a new RSS feed if you can’t find a source you want to follow
  • see friends that you can follow and share stories with in the friends feed
  • invite friends to join Outlit who aren't using Outlit yet
  • browse sources and voices by topic

At any time when using Outlit, you can search for sources by clicking on the search icon (a magnifying glass) and typing in anything - that will reveal both stories with that query and sources and voices that match.

You can also click the +source icon in your source navigation bar, the left side of the page that shows your sources that you follow on Outlit. Clicking the +RSS feed icon on the navigation lets you quickly add a RSS source to follow in your feed. 

Additionally, at the top right of your web browser, there’s a search icon that looks like a magnifying glass. This leads you to Outlit’s general search capability, which will show you stories and sources to follow.