Let me introduce yet another statistics tool: here is a lists of Wikipedia articles created last month/week/day with most users contributing to article within the same period.
It is somewhat similar to http://www.wikirage.com , but counts only new articles.
http://unit1.conus.info:8080/wikipedia.stats/
Statistics is building using Wikipedia Recentchanges feed once per 15 minutes.
Languages supported are: ca / de / en / es / fi / fr / it / ja / nl / no / pl / pt / ru / sv / ta / uk / zh