c/c++ NLP library

Question

I am looking for an open source Natural Language Processing library for c/c++ and especially i am interested in Part of speech tagging.

Answer 1

Take a look at this POS Tagger list from Stanford. Some of them are language independent and others are targeted at C/C++ or have specific bindings.
Not present on that list, but still important in my opinion is Citar, a C++ free software part of speech tagger using a trigram Hidden Markov Model.

Answer 2

NLP is a huge area of ongoing research. The Wikipedia article has some good leads.