Do you know of any application/site that measures the real usage of applications ? There are tons of polls regarding which is best, statistics of downloadds and other stuff like that, but this are not real, as everybody could choose to vote something that it uses rarely.
I have seen this in an multiplayer game, which had a statistic about what mod was played more each day... Maybe it would be intereseting if it would be available for general applications as well. (like a deamon that records the data and sends it to a server)
(the only thing that I know of is
http://counter.li.org/ - but I would like more information)