Type of site
|Headquarters||Chicago, Illinois, United States|
|Founder(s)||Zach Best, Adam Best|
FanSided is a fandom-focused sports, lifestyle and entertainment network of more than 300 websites. It was co-founded and launched in 2009 by brothers Zach Best and Adam Best.. FanSided is owned by Meredith Corporation and is headquartered in Chicago, Illinois.
The FanSided network consists of more than 300 websites, and also has a dedicated mobile app and daily newsletters. As of June 2016, FanSided was the fastest-growing among the top 15 digital sports networks.
Over time, the site expanded to include other professional sports, as well as more topics, including general news, entertainment, lifestyle and fandoms like Game of Thrones, The Walking Dead, and Star Wars.
FanSided was acquired by Time Inc. on May 26, 2015. Financial details of the agreement were not disclosed. Under Time Inc.'s ownership, founders Adam and Zach Best continued to oversee FanSided as a division of the Sports Illustrated Group.
On March 2, 2017, Adam Best announced his departure from the company.
On January 31, 2018, Time Inc. was acquired by Meredith Corporation, which assumed ownership of all of Time Inc.'s media brands, including FanSided.
In August 2012, FanSided partnered with Sports Illustrated. The partnership offered Sports Illustrated an opportunity to expand its local sports coverage and reach new customers via FanSided's digital network. As part of the partnership, Sports Illustrated's website featured links to content on FanSided websites. Time Inc. also sold ads on the FanSided websites with revenue shared between the two entities.
The Action Network and FanSided entered into an agreement in October 2019, where The Action Network became the exclusive live odds provider for the FanSided Network, in addition to working together on articles, videos and more. 
On November 6, 2015, in conjunction with Sports Illustrated, FanSided announced the FanSided Fan of the Year contest. The annual contest is aimed at recognizing the most dedicated sports fans. The five finalists are interviewed and profiled on FanSided.com and receive a one-year subscription to Sports Illustrated. The grand prize winner is featured in Sports Illustrated.
On November 1, 2016, FanSided announced Fandom 250, a subjective ranking of the best 250 fandoms in the world. The yearly ranking is assembled by a panel of experts who evaluate more than 500 fandoms across multiple categories, including sports, technology, entertainment, lifestyle and more. The fandoms are evaluated based on their size, longevity, economic and media impact, as well as the passion of its fans. For its fourth year, FanSided renamed the project the FanSided 250.
FanSided launched a dedicated extension for Google Chrome web browser on March 1, 2017. The extension enables users to create a customizable news feed and receive desktop notifications about new articles posted throughout the FanSided Network.
According to the June 2016 comScore report, the FanSided network averaged more than 10 million unique visitors per month. As of October 2019, FanSided averaged over 21 million unique visitors, according to comScore. 
On September 29, 2016, Burt Gertson, who was listed as one of FanSided's writers, got into a Twitter argument with former adult film actress Mia Khalifa, who at the time was a regular sports columnist at FanSided. It soon turned out that Gertson was not a real person despite initial claims by FanSided former Editor-in-Chief Jim Cavan. Shortly after, FanSided admitted in a series of tweets that Gertson was not real and his column was meant to be fictional satire. FanSided issued a statement on October 1, 2016 announcing that it had fired Cavan.