Wapedia
Wapedia was a mobile version of Wikipedia. It was started in August 2004 by Florian Amrhein and shut down on 4 November 2013. It was operated by Taptu.
Wapedia was originally a Wireless Application Protocol site for use on mobile phones of the very early 2000s. The URL for Wapedia was http://wapedia.mobi/. Over time, HTML interfaces were added, with the site generating pages optimised for a variety of mobile devices such as smart phones, Personal digital assistantss, and tablets. In 2009 dedicated applications for iPhone, Android and WebOS were launched.
Wapedia served articles using a combination of a proxy-like behavior and a local article database. It did not offer the ability to edit pages. Wapedia injected adverts into the Wikipedia articles, either in the HTML or in the applications.