Strange connections by gvfsd-http --spawner
If the command
sudo watch netstat -tonp
shows a lot of connections caused by gvfs directly after booting, then you can consider to remove zeitgeist, geoclue, and/or ubuntu-one. You can also consider to deactivate the rhythmbox lastfm-plugin. As I don't need these programs I decided to remove them all and after the next boot, all strange gvfs connections disappeared.
The following page shows you how to remove some of these applications.
http://ubuntuforums.org/showthread.php?t=2000108
Be aware, that Zeitgeist is an essential part of Unity! So don't remove it, if you are using Unity.
gvfsd is your Gnome Virtual File System. There is a fairly old bug that causes it to leave connections in the CLOSE_WAIT state for an undefined amount of time. It seems to be more an issue with RhythmBox more than another other program I've seen.
Some sources:
Ubuntu forums
Ubuntu forums 2