A while ago, I decided to try dropbox. Since I could
apt-get it, I thought it was free software.
However, I quickly discovered that the
apt-get command only downloaded a downloader for dropbox daemon.
So I stopped that dead in its tracks, did an
apt-get remove, aaaand...
wait a second.
The repository won't go away! In fact, if I
apt-get update, it's still in there:
Ign http://linux.dropbox.com wheezy InRelease
It's not in my
/etc/apt/sources.list, so how did it get there?