How to add bookmark to Nautilus 3.6?

As of Ubuntu 13.04, apparently, pressing Ctrl+D adds a bookmark to the folder you're in.

The bookmarks will be at nautilus

~/.config/gtk-3.0/bookmarks

You can edit this file to change your bookmarks.

This also work in Ubuntu 13.04, with Nautilus 3.6.3 .

If in doubt, use nautilus --version to see which version you have.

For Nautilus 3.4 I'm not able to drag to create bookmarks either.

I add them editing ~/.gtk-bookmarks. If you don't have that file create it. Example:

$ cat .gtk-bookmarks
file:///home/my_username/Software
file:///home/my_username/Ebooks

Try it out.