Found this great quote on the reasons behind the success of wikipedia from Jimmy Wales, the founder: (the Bold text is mine for emphasis)
He reinforced the vaguely-known wisdom that motivated people will collaborate with whatever tools they have. The thing that makes a thriving system is the project--the best tools in the world will not save a project whose people lack motivation, and most of what the system needs to do is get out of people’s way (this is true of physical offices as well, subdividing meeting rooms into different units by function would be a disaster).Yes, keep it simple. "Where there is a will, there is a way" is very true!
Thanks to Jeremy Faludi for the link.