In a different post, Aldrich extends this discussion by breaking down his workflow. He explains how he uses of Inoreader to sort through content and then saves content to his site. He also uses Calibre and Kindle to manage documents.
Adding to this discussion, Aaron Parecki has released an IndieWeb Reader which builds on these pieces and processes for an integrated solution. I think that the challenge moving forward is the simplicity of such solutions for Generation 3 and 4.