We, me in particular, rely on Wikipedia a lot.
But sometimes, we are confused by some entries in wiki. Are they true and experimentally proved? Or are they just some pranks?
Last year, wikipedia cofounder Larry Sanger set up a new wiki website named Citizendium, it's small in size now, but it's more powerful, more authoritative and more accurate. It is largely edited by real experts and you have to leave your name when editing.
Given 1-2 years, it will be a standard database of what we know of knowledge.