Hello everyone, At this year's WikiSym, there was an interesting discussion on wiki measurement and evaluation. Wiki research often involves the measurement of pages to identify various editing patterns, such as highly concentrated editing activity, the development of cliques, or the emergence of highly active and inactive users. Because some of the quantities that researchers desire to measure (such as "coordination", "concentration", and "quality") are necessarily vague, choosing a formula or metric that acts as a surrogate for the desired measurement requires some thought and discretion. Because I was not able to find an existing compilation of metrics for wikis, I created several pages outlining some wiki usage patterns and the metrics that could identify them. Although the pages are not specific to Wikipedia (they were written with corporate wiki practitioners in mind), I think they would also be of interest to the Wikipedia research community. The pages can be found here: http://www.wikisym.org/ws2009/tiki-index.php?page=Corporate+Wiki+Metrics I invite all interested researchers to add more metrics to the pages, or use the pages as a reference. Also, if there are any suggestions for a more appropriate wiki to host this information (other than the WikiSym '09 wiki) please let me know. (I do not know of any wikis that act as a repository for wiki research information -- does anybody know of one?) Jeff