I am using Mendeley to keep track of my papers. It allows me to group the papers in folders, and I can easily export BiBTeX for a folder which I can include in a paper I am writing.
However, almost always I need to fill in all the details when I add a new paper to my library. "Search by Title" feature does not do a great job.
I think everyone around the world is creating their BiBTeX (or any other format) entries by hand. Is there a community driven (wikipedia like) website/service that unifies this process?
What I have in my mind is something like this: People add article meta information (title, authors, year etc.) to this public DB, if they see a mistake they correct it, if they see duplicates they prevent it by deleting one. And one can export entries as BiBTeX, etc.
The closest thing I saw is Google Scholar. But because it tries to automate nearly the whole process there are still lots of mistakes.