Before putting effort into configuring and trying to use a complex open source component, it is useful to have some idea as to whether bug reports or support requests are likely to get a response. I have a reasonable clue for how to do this for the original upstream source of something in ubuntu.
However, when I see a version like: 6.2u5-1ubuntu1, I know that the Ubuntu dev community in particular is responsible for the package. This is particularly true if the upstream source bundle is difficult to build and thus it's clear that whoever made the .deb for Ubuntu did a lot of work.
How can I track the provenance of an Ubuntu debian and get some idea if the people who did it are still maintaining it? Is there some Ubuntu index that maps packages to their packagers?
My example of the moment is gridengine-qmon and friends.