Wikipedia
WikiDumper.org is a website created by Clifford A. Pickover that promises to permanently record a snapshot of the "best of the Wikipedia rejects", articles that are slated for deletion at the site. WikiDumper was launched on November 4, 2006, and accepts user submissions. Although the site doesn't specify its criteria for inclusion, many of its articles don't cite their sources. The site has been criticized as likely to be less accurate than Wikipedia.
The WikiDumper page has as its motto "Knowledge's Last Chance." It states its mission, "From the bold to the beautiful, from the wicked to the wise, every day the Wikipedia team relegates possibly "inappropriate" submissions to the garbage dump of time. Here, we make selected rejects immortal and preserve them for posterity."