A prominent online presence helps you share your work through increased visibility, track your impact in the field, and network with others. It also fosters an identifiable personal brand; allowing you to market your achievements. A variety of social networks and other tools help you reach an increasingly varied audience beyond traditional scholarly outlets.
Remember a social networking site is not a digital repository. Sites like academia.edu and Research Gate are powerful tools for sharing your work. However, online platforms do not properly substitute for a digital repository's stable and reliable long-term accessibility. Here are some suggested services, all with different strengths and weaknesses.