• Social Software on Intranets Report, Nielsen Norman Group – March 2013
• Der Business-Nutzen von Enterprise 2.0, IT  Magazine Special – May 2011
• Digital Social Media, Dagstuhl Manifesto –  March 2010
• Social Software on Intranets Report, Nielsen Norman Group – May 2009
• Elektronic Banking, Schweizer Banken – November 1999
• Internet Banking, Schweizer Banken – March 1997
• Security Management : Realisierung von VPN's, Schweizer Banken – August 1995
• Das verteilte Risiko,Output – June 1995

Presentations ( on Slideshare )

• From Social Media to Social Business, SOCAB Zurich, Geneva – 2013
• Socialize your Intranet, Oracle Social Summit, Las Vegas – 2012
• How to build vibrant communities FHNW, Olten, Switzerland – 2010-2013
• Business Benefits of Enterprise Communities, TIM BSGroup Zurich – 2011
• Business Benefits of Enterprise Communities, Oracle E.20 Zurich – 2011
• Enterprise Use cases with Semantic Web, Meetup Berlin – 2011
• Social Semantic Web, Burton Catalyst Conference Prague – 2010
• Enterprise Use Cases for Semantic Web, Semantic Web Tag Leipzig – 2010       
• Community Equity & Semantic Web, i-Semantics Web, Graz, Austria – 2009
• Enterprise Communities, SunSpace, Atlassian Summit San Francisco – 2009
• Community Equity, JavaOne San Francisco – 2009
• Intellectual Capital Management, MBA class HSG St.Gallen, Switzerland – 2003-2004
• Multichannel Internet Banking, Finance Forum Switzerland – 1999
• Internet Banking & Internet shopping San Francisco, Berlin – 1997
• Java Security and Electronic Commerce, Arab Banking Summit London –1997
• Secure Internet Banking, Banking Summit Vienna – 1997
• Secure Payment, ELCASH, Luxembourg – 1997
• Security in Distributed Systems, Military & Government Summit South Africa- 1995
• Distributed Network Management, ETH Zurich, Uni Berne –1992?