Researching and preserving endangered languages for posterity is mostly field work. For the most part, hardly any online records (apart from those collected by

Researching and preserving endangered languages for posterity is mostly field work. For the most part, hardly any online records (apart from those collected by researchers) exist. It's very interesting work because documenting endangered languages means studying them in their 'natural habitat'. It's probably as Indiana Jones as a linguist's work can be. That said, computational linguistics and especially statistical language models (HMMs etc.) are very useful for finding and describing distinctive language features once the data has been retrieved in the field. This is an area of expertise you might get involved in.