The story
In 2003, co-founders Venkat Kolluri and Alden DoRosario started Chitika after leaving their jobs at search engine-based company Lycos. Since launching its online advertising service in 2004, Chitika has added a Mobile advertising Division as well as a Real-Time Bidding Division.
In 2015, Chitika's founders announced Cidewalk, their local mobile ad platform, would spin off into a separate business unit with $4 Million in seed funding and new office space in Southborough, MA.
On April 17, 2019, Chitika wrote to publishers advising them of their immediate cessation of business. The email advised publishers to remove all Chitika code from their website. The email further advised publishers that they would not be paid for impressions or clicks occurring since March 1, 2019.
From Wikipedia’s article on Chitika, shared under CC BY-SA 4.0.4
