Squidoo is a website founded in 2005 that allows users to create "lenses" to share expertise on various topics. Over 1.4 million lenses have been created on a wide variety of topics. Users can earn money from lenses with 50% of advertising revenue going to the lens creator. While Squidoo provides a way for people to find information and for experts to share knowledge, it also faces challenges from spam and inaccurate lens ratings. The site was found to be an engaging way to discover new topics by the author.