Social Media: websites and applications that enable users to create and share content or to participate in social networking.
Information Professional: An information professional or information specialist is someone who collects, records, organises, stores, preserves, retrieves, and disseminates printed or digital information. 
Social Networks: a network of social interactions and personal relationships.
Web 2.0: refers to websites that emphasize user-generated content, ease of use, participatory culture and interoperability. 
