For a long time I've wanted to create a website where church folk could upload resources to be shared with other church folk. If you have a good children's sermon, youth lesson, prayer of confession, personnel manual, bible study, or bulletin cover then you could upload it to this imaginary website, tag or categorize it appropriately and it would be there for the masses so we don't have to reinvent the wheel.
Using Posterous as my platform I've set up Church Box at www.churchbox.org. Consider this site in open beta for the time being. This means that it basically works, but that it could be improved (probably greatly).
Give it a try and let me know what you think. Or just browse the few resources that form my ministry that I have shared.