- Sponsorship Chair of The 20th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2018).
- Workshop and Tutorial chair of the 28th ACM conference on Hypertext and Social Media (2017).
- General chair of the The 17th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2015).
- General chair of the 26th ACM Conference on Hypertext and Social Media (HT 2015).
- General chair of the 8th National Software Engineering Symposium (UYMS2014).
- Programme chair of the The 13th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2011)
- Scientific Committee member of Website Accessibility Metrics organised by W3C WAI Research and Development Working Group.
- Organising chair of the International Cross-Disciplinary Workshop on Web Accessibility (W4A); W4A2004, W4A2005, W4A2006, W4A2007 and W4A2008. Serving as an operations chair of W4A 2009 which is a co-located conference with the Eighteenth International World Wide Web Conference.
- Posters and Demonstrations chair of the The 12th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2010).
- Organising chair of the Doctoral Consortium at ASSETS 2006.
- Managing Hoppers@KWeb; a gender action plan for the Knowledge Web project.
- Registration Chair of the The Eighteenth International ACM Conference on Hypertext and Hypermedia (HT07).
- Registration Chair of the ASSETS 2008.
- Co-editor of New Review of Hypermedia and Multimedia (NRHM) by Taylor and Francis (SCI-E Type A).
- Editorial Board Member of the ACM’s Transactions on Accessible Computing (TACCESS).
- European Commission (EU);
- TUBITAK (The Scientific and Technological Research Council of Turkey);
- FCT, Portugal.
Program Committee Membership and Reviewing
Serving as a programme committee member and/or reviewer for the following workshops, conferences and journals:
- ASSETS 2016, CSUN 2016, HT2016, ICCHP 2016 , UYMS 2016, W4A 2016, Behaviour and Information Technology (BIT), International Journal of Human-Computer Studies, Green Brain competition 2015, womENcourage 2015, W4A 2015, UYMS 2015, INTERACT 2015, Journal of Educational Technology & Society, ACM Transactions on Accessible Computing (TACCESS), Behaviour and Information Technology (BIT), International Journal of Human-Computer Studies, Springer Information Systems Frontiers, CHI 2015, journal of behaviour and information technology, W4A2014, MMV Track at SAC 2014, ICCHP 2014, CSUN 2014, , CHI 2014, ASSETS 2014, MOBACC 2013, INTERACT 2013, NLP4ITA 2013, WEBIST 2013, ASSETS 2013, New Review of Hypermedia and Multimedia (NRHM), CHI 2012, ASSETS 2012, CSUN 2012, NLP4ITA, SAC 2012, W4A 2012, WEBIST 2012, CHI 2011, Journal of Web Engineering (JWE), MMV Track at SAC 2011 (The 26th ACM Symposium on Applied Computing 2011), Springer Multimedia Tools and Applications, INTERACT 2011 Workshop on Mobile Accessibility, The 8th International Conference on Mobile Web Information Systems (MobiWIS), INTERACT 2011, IEEE Transactions on Learning Technologies, 11th International Conference on Web Engineering (ICWE 2011), International Journal of Industrial Ergonomics, HCI Track at SAC 2010 (The 25th ACM Symposium on Applied Computing 2010), MMV Track at SAC 2010 (The 25th ACM Symposium on Applied Computing 2010), eHealth 2010, KR 2010: Twelfth International Conference on Principles of Knowledge Representation and Reasoning, The 10th International Conference on Web Engineering (ICWE 2010), CHI 2010, The 8th International Semantic Web Conference (ISWC 2009) , Human Computer Interaction Track at the 25th Symposium On Applied Computing, SemHE-09, Third International Workshop on Ontologies in Distributed and Interactive Systems, ASSETS 2009, Springer World Wide Web Journal, INTERACT 2009, ACM SAC’09 Multimedia & Visualization Track (MMV), ASSETS 2008, First International Workshop on Ontologies in Interactive Systems, ASSETS 2007, ASSETS 2006, ISWC 2006, A Special Issue of ACM Transactions on Computer-Human Interaction (TOCHI), WWW2005, Journal of Web Semantics, ACM Transactions on the Web (TWeb), ACM Transactions of Accessible Computing, ACM Transactions on Computer-Human Interaction (TOCHI)Universal Access in the Information Society Journal (UAIS), Electronics and Telecommunications Research Institute Journal (ETRI), HT04, ISWC 2004, HT03, ICWE 2003, WISE 2003, Knowledge and Semantic Annotation Workshop 2003.
- Serving as the Secretary/Treasurer of the SIGWEB.
- Serving as the chair of the Hypertext Conference Steering Committee.
- Invited speaker at Public sector online 2008. My slides can be downloaded from Developing and delivering mobile content.
- Member in good standing of W3C‘ Mobile Web Best Practices Group (MWBP) and also the W3C WAI Education and Outreach Working Group (EOWG).
- Invited speaker at 3d European eAccessibility Forum and TEKIL 09 organised by Galatasaray University.
- Given a tutorial called Practical Accessibility: A Web Accessibility Primer with Dr. Simon Harper at the 9th International Conference on Web Engineering (ICWE 2009).
- Computer Engineering Program Coordinator at METU NCC, since September 2012;
- Member of Academic Board of Engineering and Natural Sciences at METU NCC, since September 2012.