Social media 2004, Yahoo! 360° in March 2005, Bebo in July 2005, Twitter in July 2006, Tumblr in February 2007, and Google+ in July 2011. As operating systems with a graphical user interface, such as Windows 95 and Mac OS begin to emerge and gain popularity, this created an environment that allows for early social media platforms to thrive and exist. The variety of evolving stand-alone and built-in social media services makes it challenging to define them. However, marketing and social media experts broadly agree that social media includes the following 13 types of social media: blogs, business networks, collaborative projects, enterprise
Evan Williams (Internet entrepreneur) a website called EvHead.com, where he first began blogging about his personal thoughts. Evan Williams and Meg Hourihan co-founded Pyra Labs to make project management software. A note-taking feature spun off as Blogger, one of the first web applications for creating and managing weblogs. Williams coined the term "blogger" and was instrumental in the popularization of the term "blog". Pyra survived the departure of Hourihan and other employees, and later, was acquired by Google on February 13, 2003. In 2003, Williams was named to the MIT Technology Review TR100 as one of the top 100 innovators in the world under