TUMBLR
Tumblr is a microblogging platform and social networking website. The service allows users to post multimedia and other content to a short-form blog. Users can follow other users’ blogs, as well as make their own. Much of the website’s features are accessed from the “dashboard” interface, where the option to post content and posts of followed blogs appear.
This site provides a good opportunity for promotion, and interests for non-authors too!