In one section of their blog there is a part called Babelwords. Interested in learning and studying languages, I found this post so interesting, I wanted to share it. Enjoy.
Languages in the road to extinction
Languages die when they are no longer spoken. This happens for various reasons. First of all when those who speak the language die because of natural disasters or genocide. When Europeans eradicated the inhabitants of Tasmania, in the nineteenth century, many languages died with them. Just like, within two hundred years from the arrival of the Europeans in America, many, many languages died together with 90 percent of the indigenous population killed by diseases imported by the colonizers.

The market also plays a part, in the sense that if a minority language isn’t used for economic exchange it is not likely to survive.
And the market is now global, with communities that have become like the stronger ones. It’s the end of geographic isolation. Urbanization and globalization create a scene made of global languages for global markets and dominant cultural models, to which new generations aspire and adapt, often preferring to abandon their origins, from cultural to linguistic identity, because that model is perceived as better.
Languages that are really in danger are those spoken only by old people and no longer taught to children – due to external causes or internal circumstances of the community dictated by the modification of the socio-economic context in which the languages were born.
(This post can be found in his original format here: http://www.benettontalk.com/opencms/opencms/benettontalk/en/min_0001/con_0006.html)