Geoffrey Sampson 
Structural Linguistics in the 21st Century [PDF ebook] 

This book is a sequel to Geoffrey Sampson’s well-received textbook Schools of Linguistics. Linguistics changed around the millennium; the advent of cheap air travel and the internet meant that geographical distance ceased to be a barrier to scholarly interaction, so new developments are no longer grouped into separate "schools" located in different places. Consequently, the best way to show how linguistics is flowering in our time is through a sampler displaying individual examples of recent advances. Sampson offers such a sampler, describing two dozen of the most interesting innovations in the subject to have emerged in the present century. And he includes a few looks back at how the approaches described in Schools of Linguistics panned out in the closing years of the old century, before they evolved into-or made way for-today’s more realistic and more diverse linguistics.