M. Korn, Situating engagement: Ubiquitous infrastructures for in situ civic engagement . Doctoral dissertation, 2013.

T. Ertiö and S. Ruoppila, Supporting " Participation " in Mobile Participation, Electronic Government and Electronic Participation. Innovation and the Public Sector, pp.3-12, 2014.

R. Kleinhans, M. Van-ham, and J. Evans-cowley, Using Social Media and Mobile Technologies to Foster Engagement and Self-Organization in Participatory Urban Planning and Neighbourhood Governance, Planning Practice & Research, vol.35, issue.4, pp.237-247, 2015.
DOI : 10.1080/10630732.2012.626702

T. Ertiö, Participatory Apps for Urban Planning???Space for Improvement, Planning Practice & Research, vol.1, issue.1, pp.303-321, 2015.
DOI : 10.1111/j.1540-6210.2011.02417.x

K. Desouza and A. Bhagwatwar, Citizen Apps to Solve Complex Urban Problems, Journal of Urban Technology, vol.62, issue.5, pp.107-136, 2012.
DOI : 10.1002/asi.21506

J. Evans-cowley, There???s an App for That, International Journal of E-Planning Research, vol.1, issue.2, pp.79-87, 2012.
DOI : 10.4018/ijepr.2012040105

S. Höffken and B. Streich, Mobile Participation: Citizen Engagement in Urban Planning via Smartphones, ) Citizen E-Participation in Urban Governance: Crowdsourcing and Collaborative Creativity, pp.199-225, 2013.

R. Lindner and U. Riehm, Broadening Participation Through E-Petitions? An Empirical Study of Petitions to the German Parliament, Policy & Internet, vol.3, issue.1, 2011.
DOI : 10.2202/1944-2866.1083

D. C. Brabham, Crowdsourcing the Public Participation Process for Planning Projects, Planning Theory, vol.31, issue.6, pp.242-262, 2009.
DOI : 10.1016/j.telpol.2007.04.001

H. Kubicek, The Potential of E-Participation in Urban Planning, Handbook of Research on E-Planning: ICTs for Urban Development and Monitoring. Hershey, 2010.
DOI : 10.4018/978-1-61520-929-3.ch009

J. Saad-sulonen, Combining Participations Expanding the Locus of Participatory EPlanning by Combining Participatory Approaches in the Design of Digital Technology and in Urban Planning, 2014.

M. E. Jonsson, Democratic Innovations in Deliberative Systems -The Case of the Estonian Citizens Assembly Process, Journal of Public Deliberation, vol.11, issue.7, 2015.

C. J. Carman, Barriers are Barriers: Asymmetric Participation in the Scottish Public Petitions System, Parliamentary Affairs, vol.67, issue.1, pp.151-171, 2014.
DOI : 10.1093/pa/gss039

M. Aitken, E-Planning and Public Participation, International Journal of E-Planning Research, vol.3, issue.2, pp.38-53, 2014.
DOI : 10.4018/ijepr.2014040103

H. E. Brady, S. Verba, and K. L. Schlozman, Beyond SES: A Resource Model of Political Participation, American Political Science Review, vol.11, issue.02, pp.271-294, 1995.
DOI : 10.1086/267649

R. Steinmann, A. Krek, and T. Blaschke, Analysis of Online Public Participatory GIS Applications with Respect to the Differences between the US and Europe, Proceedings of the Urban Data Management Symposium, 2004.

J. Evans-cowley and J. Hollander, The New Generation of Public Participation: Internet-based Participation Tools, Planning Practice & Research, vol.19, issue.3, pp.397-408, 2010.
DOI : 10.1002/9780470774298

W. Williamson and B. Parolin, Web 2.0 and Social Media Growth in Planning Practice: A Longitudinal Study, Planning Practice and Research, vol.4, issue.2, pp.544-562, 2013.
DOI : 10.1080/07293682.2005.9982417

T. Aitamurto and H. Landemore, Crowdsourced Deliberation: The Case of the Law on Off-Road Traffic in Finland, Policy & Internet, vol.7, issue.2, 2016.
DOI : 10.1017/CBO9780511498718

J. Van-dijk, The Deepening Divide Inequality in the Information Society, SAGE, 2005.

A. Van-deursen, J. Van-dijk, and O. Peters, Rethinking Internet skills: The contribution of gender, age, education, Internet experience, and hours online to medium- and content-related Internet skills, Poetics, vol.39, issue.2, pp.125-144, 2011.
DOI : 10.1016/j.poetic.2011.02.001

E. Hargittai, Second-Level Digital Divide: Differences in Peoples Online Skills. First Monday 7 Available at: http://firstmonday, 2002.
DOI : 10.5210/fm.v7i4.942

J. Van-deursen and J. Van-dijk, The digital divide shifts to differences in usage, New Media & Society, vol.90, issue.2, pp.507-526, 2013.
DOI : 10.1111/j.1540-6237.2009.00617.x

A. Van-deursen, C. Courtois, and J. Van-dijk, Internet Skills, Sources of Support, and Benefiting From Internet Use, International Journal of Human-Computer Interaction, vol.1, issue.5, pp.278-290, 2014.
DOI : 10.1111/1468-2427.00309

J. Van-dijk and A. Van-deursen, Digital Skills: Unlocking the Information Society, 2014.
DOI : 10.1057/9781137437037

N. Zillien and E. Hargittai, Digital Distinction: Status-Specific Types of Internet Usage, Social Science Quarterly, vol.86, issue.(3), pp.274-291, 2009.
DOI : 10.1007/978-3-322-80848-6_3

L. Wei, Number Matters: The Multimodality of Internet Use as an Indicator of the Digital Inequalities, Journal of Computer-Mediated Communication, vol.38, issue.4, pp.303-318, 2012.
DOI : 10.1177/0961000606070600

E. Hargittai and A. Hinnant, Digital Inequality, Communication Research, vol.86, issue.1, pp.602-621, 2008.
DOI : 10.1002/9780470774298

B. Reisdorf, NON-ADOPTION OF THE INTERNET IN GREAT BRITAIN AND SWEDEN, Information, Communication & Society, vol.14, issue.3, pp.400-420, 2011.
DOI : 10.1080/1369118X.2010.543141

B. Reisdorf and D. Groselj, Internet (non-)use types and motivational access: Implications for digital inequalities research, New Media & Society, vol.27, issue.3, 2015.
DOI : 10.1111/j.1540-6237.2009.00617.x

K. E. Pearce and R. E. Rice, Digital Divides From Access to Activities: Comparing Mobile and Personal Computer Internet Users, Journal of Communication, vol.7, issue.2, pp.721-744, 2013.
DOI : 10.1111/j.1540-6237.2009.00617.x

E. Hargittai and S. J. Kim, The Prevalence of Smartphone Use Among a Wired Group of Young Adults Institute for Policy Research Northwestern University, Working Paper Series Available at: www.ipr.northwestern, 2010.

G. Mascheroni and K. Olafsson, The mobile Internet: Access, use, opportunities and divides among European children, New Media & Society, vol.27, issue.8, pp.1-23, 2015.
DOI : 10.1177/1461444813487959

M. R. Vicente and A. Novo, An empirical analysis of e-participation. The role of social networks and e-government over citizens' online engagement, Government Information Quarterly, vol.31, issue.3, pp.379-387, 2014.
DOI : 10.1016/j.giq.2013.12.006

C. Courtois and P. Verdegem, With a little help from my friends: An analysis of the role of social support in digital inequalities, New Media & Society, vol.90, issue.10, pp.1-20, 2014.
DOI : 10.1111/j.1540-6237.2009.00617.x

C. E. Porter and N. Donthu, Using the technology acceptance model to explain how attitudes determine Internet usage: The role of perceived access barriers and demographics, Journal of Business Research, vol.59, issue.9, pp.999-1007, 2006.
DOI : 10.1016/j.jbusres.2006.06.003

E. J. Helsper, The Emergence of a Digital Underclass Digital Policies in the UK and Evidence for Inclusion. LSE Media Policy Project Brief 3 Available at: http://www.lse.ac.uk/media%40lse, 2011.

M. R. Johannessen, L. S. Flak, and Ø. Saebø, Choosing the right medium for municipal e-participation based on stakeholder expectations. Electronic Participation, pp.25-36, 2012.

M. Xenos, A. Vromen, and B. D. Loader, The great equalizer? Patterns of social media use and youth political engagement in three advanced democracies. Information, pp.151-167, 2014.

E. Bonsón, S. Royo, and M. Ratkai, Citizens' engagement on local governments' Facebook sites. An empirical analysis: The impact of different media and content types in Western Europe, Government Information Quarterly, vol.32, issue.1, pp.52-62, 2015.
DOI : 10.1016/j.giq.2014.11.001

R. Korminouri, L. Nilsson, and N. Ohta, The novelty effect: Support for the Novelty-Encoding Hypothesis, Scandinavian Journal of Psychology, vol.6, issue.2, pp.133-143, 2005.
DOI : 10.3758/BF03210977

?. Aström, J. Ruoppila, S. Ertiö, T. Karlsson, M. Thiel et al., Potentials and Challenges of a Living Lab Approach in Research on Mobile Participation, Adjunct Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2015 ACM International Symposium on Wearable Computers, pp.795-800, 2015.