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
Sidney Dorsey to Brown's murder, but was unsuccessful. During his tenure as sheriff, Dorsey also served on the task force that looked into reopening the case of convicted child murderer Wayne Williams. Dorsey appeared as one of many, including some of the victims' relatives, who voiced public doubt of Williams's guilt of the murders. Dorsey is quoted as stating: ""Most people who are aware of the child murders believe as I do that Wayne Williams did not commit these crimes"". Williams was identified as the key suspect in the Atlanta Child Murders that occurred between 1979 and 1981. In January 1982, he