Here's a good example:
"Some Indian-language Wikipedias are already the largest online repositories of information in their respective languages," Bhati said. "Regular community meetings such as the one we had today in Ahmedabad can help spread the word about our mission."
This facet is even more important for languages with a relatively small numbers of speakers, or perhaps threatened with outright extinction. Wikipedia acts as a natural focus for the creation of texts in these languages that might otherwise be missing - a repository of linguistic wisdom that can be shared and built on. In this way, it plays an important role not just in spreading knowledge about the world, but also about the languages that people use to talk about that world. (via @klang67)
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