If you look in the “Places” menu of the GNOME panel or the “Places” view in open/close dialogs or in the file manager, you will see a list of folders. It often includes some local folders and – in addition – the remote locations you connected to via the “Connect to server” functionality.
These entries are saved in your home directory in the file .gtk-bookmarks. It is built using a simple scheme: Each line consists of a target URL and a label to display, separated by a blank. You can simply reduce or extend your list of bookmarks by editing this file.
An example, showing various protocols:
sftp://firstname.lastname@example.org/path/to/folder My folder on host.na.me (via SSH) ftp://email@example.com/mypath Another bookmark, using FTP file:///home/user2/music My local music folder
This will be displayed as
My folder on host.na.me (via SSH)
Another bookmark, using FTP
My local music folder