“…Many of these tools are aimed at supporting either group meetings (brainstorming tools, shared whiteboards, videoconferencing tools) or collaborative writing (wikis). These tools have been studied extensively (Pedersen et al, 1993;Okada et al, 1994;Adler et al, 2006). However, although more and more data is being collected, indexed and made available to all, collaborative data processing has received little attention until recently (Viégas et al, 2007(Viégas et al, , 2008.…”