This volume constitutes the proceedings of the 10th International Workshop on Groupware (CRIWG 2004). The conference was held in San Carlos, Costa Rica, and followed the traditional CRIWG spirit: a relatively small number of attendees, lively discussions and participation during and between paper p- sentations, and a constructive and friendly environment, which promoted a high level of learning and collaboration. The previous nine CRIWG workshops were organized in Lisbon, Portugal (1995), Puerto Varas, Chile (1996), El Escorial, Spain (1997), Buzios, Brazil (1998),Cancun,Mexico (1999),Madeira,Portugal(2000),Darmstadt,Germany (2001), La Serena, Chile (2002), and Autrans, France (2003). This 10th anniversary CRIWG exempli?ed the continuing interest in the groupwareresearcharea.Groupwareresearchersfrom 14 di?erent countriess- mitted a total of 71 papers. Each of the 71 papers was reviewed by two to three members of an international Program Committee, using a double-blind revi- ing process. Reviewers were carefully matched to paper submissions as much as possible to ensure expert assessments of the submitted research while avo- ing potential con?icts of interest.Reviews were usually extensive and contained many constructive suggestions for improvement. Based on the reviewers' rec- mendations 29 papers were ?nally accepted: 16 long papers presenting mature work,and13shortpapersdescribingworkinprogress.Theacceptedpaperswere grouped into seven themes that represent current pockets of interest in gro- wareresearch:knowledgemanagement,awareness,supportforcollaborationp- cesses,collaborativeapplications,groupwareinfrastructure,computer-supported collaborative learning, and mobile collaborative work.

This book constitutes the refereed post-conference proceedings of the 14th International Workshop on Groupware: Design, Implementation, and Use, held in Omaha, Nebraska, USA, during September 14-18, 2008. The 30 papers presented were carefully reviewed and selected from numerous submission. The topics covered are groupware solutions, co-located groups, groupware for health care, collaborative systems development, collaborative emergency response, groupware approaches, patterns of collaboration, thinklets-based process design, mobile applications, knowledge and learning, groupware technologies, and collaborative modeling.

This book constitutes the refereed post-conference proceedings of the 14th International Workshop on Groupware: Design, Implementation, and Use, held in Omaha, Nebraska, USA, during September 14-18, 2008. The 30 papers presented were carefully reviewed and selected from numerous submission. The topics covered are groupware solutions, co-located groups, groupware for health care, collaborative systems development, collaborative emergency response, groupware approaches, patterns of collaboration, thinklets-based process design, mobile applications, knowledge and learning, groupware technologies, and collaborative modeling.

This book constitutes the proceedings of the 19th Collaboration Researchers' International Working Group Conference on Collaboration and Technology, held in Wellington, New Zealand, in October/November 2013. The 18 revised papers presented together with 4 progress papers were carefully reviewed and selected from 34 submissions. They are organized into six thematic sessions as follows social media, social networks, crowdsourcing, learning, collaboration design and software development.

This volume constitutes the proceedings of the 10th International Workshop on Groupware (CRIWG 2004). The conference was held in San Carlos, Costa Rica, and followed the traditional CRIWG spirit: a relatively small number of attendees, lively discussions and participation during and between paper p- sentations, and a constructive and friendly environment, which promoted a high level of learning and collaboration. The previous nine CRIWG workshops were organized in Lisbon, Portugal (1995), Puerto Varas, Chile (1996), El Escorial, Spain (1997), Buzios, Brazil (1998),Cancun,Mexico (1999),Madeira,Portugal(2000),Darmstadt,Germany (2001), La Serena, Chile (2002), and Autrans, France (2003). This 10th anniversary CRIWG exempli?ed the continuing interest in the groupwareresearcharea.Groupwareresearchersfrom 14 di?erent countriess- mitted a total of 71 papers. Each of the 71 papers was reviewed by two to three members of an international Program Committee, using a double-blind revi- ing process. Reviewers were carefully matched to paper submissions as much as possible to ensure expert assessments of the submitted research while avo- ing potential con?icts of interest.Reviews were usually extensive and contained many constructive suggestions for improvement. Based on the reviewers' rec- mendations 29 papers were ?nally accepted: 16 long papers presenting mature work,and13shortpapersdescribingworkinprogress.Theacceptedpaperswere grouped into seven themes that represent current pockets of interest in gro- wareresearch:knowledgemanagement,awareness,supportforcollaborationp- cesses,collaborativeapplications,groupwareinfrastructure,computer-supported collaborative learning, and mobile collaborative work.

This book constitutes the refereed post-conference proceedings of the 14th International Workshop on Groupware: Design, Implementation, and Use, held in Omaha, Nebraska, USA, during September 14-18, 2008. The 30 papers presented were carefully reviewed and selected from numerous submission. The topics covered are groupware solutions, co-located groups, groupware for health care, collaborative systems development, collaborative emergency response, groupware approaches, patterns of collaboration, thinklets-based process design, mobile applications, knowledge and learning, groupware technologies, and collaborative modeling.

This book constitutes the refereed post-conference proceedings of the 14th International Workshop on Groupware: Design, Implementation, and Use, held in Omaha, Nebraska, USA, during September 14-18, 2008. The 30 papers presented were carefully reviewed and selected from numerous submission. The topics covered are groupware solutions, co-located groups, groupware for health care, collaborative systems development, collaborative emergency response, groupware approaches, patterns of collaboration, thinklets-based process design, mobile applications, knowledge and learning, groupware technologies, and collaborative modeling.

This book constitutes the proceedings of the 19th Collaboration Researchers' International Working Group Conference on Collaboration and Technology, held in Wellington, New Zealand, in October/November 2013. The 18 revised papers presented together with 4 progress papers were carefully reviewed and selected from 34 submissions. They are organized into six thematic sessions as follows social media, social networks, crowdsourcing, learning, collaboration design and software development.