The aim of this book is to outline some areas of research in computational linguistics or natural language processing where Wikipedia, and by extension the other Wikimedia projects, have the potential to be valuable resources. It is not intended to serve as an introduction to either of these fields and does not assume any knowledge of Wikipedia.
Witkionary, Wikinews, Commons, Wikibooks, Wikisource, Wikiquote. Languages. Meta & Commons direct translations of help (etc) pages. Who contributes? growth.
Possibly dv.wp is the smallest project which has a translated logo. Less than 200 articles, probably less than 20 legitimate registered users, Dhivehi language, <300000 speakers, official lang of the Maldives.