Blogging seems to have been around for quite some time. So it's old, especially by technology standards. It may also be even old-fashioned when stacked up against the more recent interactive web applications, or it may just outnumbered by the plethora of interactive social media websites.
Blogging has been around since the late 1990's when interactive websites were becoming more available. Prior to interactive websites, a webpage was static and to put information on the Internet one needed knowledge of HTML and FTP. Blogs received their names as a truncation of web log, a log being similar to a captain's log or a personal journal.
Blogging websites allowed individuals to deliver their writings to the entire world which meant they were able to publish their daily activities, and far more powerful their opinions on a variety of topics, hence becoming their own editors, publishers and journalists.
In education one can follow the same pattern of logging and opining, or one can recognize the effectiveness of this tool and use it to benefit education, such as communicating with students about lessons, or parents about activities and students' work, or administration with suggestions and questions, or the community about just about anything; and allowing a response from the audience.
Currently there are numerous websites that allow one to create a blog, and typically for free. Over time the popularity of different sites wane and ebb. Google's Blogger was a hit for years; more recently it's Wordpress and Weebly. Fundamentally they're all very much alike, but each offers different features to entice users into their web. Individuals therefore can choose their own preferences based on their desires, interests and reasons for blogging.
Our challenge today as educators is to continue to evaluate the effectiveness of blogs among themselves and against other social media, and to evaluate its effectiveness in education. If you haven't noticed you're reading this in Blogger.com because I started it years ago and would just as soon not start more blogs elsewhere on the Internet.