He gave evidence opposing Internet censorship on behalf of the ACS to an Australian Senate committee hearing in the mid 1990s.
[2] Worthington appeared as an expert witness in the case Maguire v SOCOG 2000 in the Human Rights and Equal Opportunity Commission, providing an analysis of the accessibility for the disabled of the Sydney 2000 Olympics web site[1] He is the author of ICT Sustainability: Assessment and Strategies for a Low Carbon Future, a free open access book of course notes for Green computing courses run by the Australian National University[3] and Australian Computer Society.
[4] In July 2013 Worthington established a new business and website "Higher Education Whisperer", to provide advice on vocational and university course design, learning, teaching and research.
Worthington has had research papers published on topics including e-learning for ICT sustainability[7] and a proposal to combine the features of synchronous and asynchronous learning in one software package.
[8] Worthington is an Adjunct Lecturer[9] in the Research School of Computer Science, College of Engineering and Computer Science at the Australian National University, where he teaches ICT Sustainability, the design of web sites and use of e-commerce systems.