About
The development of this plugin started when Google released a document called "Google's Search Engine Optimization starter guide" in November 2008. After a long public beta phase the plugin finally reached stable status in March 2009. A new, revised edition for MyBB 1.6.4 and newer was released in August 2011.
The goal of this plugin is to implement Search Engine Optimization (SEO) in MyBB according to the guidelines presented in Google's SEO starter guide to make MyBB more friendly to both users and search engines.
Google SEO is free open source software (LGPL). This means that you can download the plugin for free, modify it to your liking, and you do not have to put any copyright or backlinks on your page.