Wikipedia
Helium.com
Helium.com, Inc. was founded in 2006 as a Yahoo! Answers-style website created from user generated content paid on a revenue sharing model. Over time the site evolved from short answers to stand-alone articles, and began to offer writers the opportunity to earn from selling articles as well as passive income. The sale of articles to businesses and publishers is now its primary business, and the revenue share arm has closed to new members, effective May 21, 2014. The sites which display revenue share articles will be closed down on December 15, 2014.
The domain is now owned and operated by Helium Systems.