User microposts - fix missing test of respond_to :feed in Listing 10.35
Following users - generate relationship model
Following users - User/Relationship associations
Following users - validations
Following users - following
Following users - followers
Following users - sample following data
Following users - stats and a follow/unfollow form
Followin users - following and followers pages
Following users - a working follow button the standard way
Following users - a working follow button with Ajax
Following users - a first feed implementation
Following users - favor sub-SELECT over IN in case of huge following