Where do file managers save their bookmarks?

Here is some new information for Thunar, it recently (probably 2015-02) changed:

• previous location: ~/.gtk-bookmarks
• current location: ~/.config/gtk-3.0/bookmarks

No, (at least in pcmanfm) they are not stored as symlinks; they are stored in .gtk-bookmarks, a plain text file, like so:

file:///home/jason/Music Music
file:///home/jason/Videos Videos