TIGERSearch A search engine for searching treebanks, using a query language
akin to TFS formalisms.
Kenji Kita's list of all kinds of software related to corpus linguistics and NLP (includes POS taggers, parsers, stemmers, language identification, and corpus tools).
MI/X:
the X for Mac program we're using in the lab.
Tgrep2 A new-improved version of tgrep by Douglas L. T. Rohde.
MulLingProc A prototype program for processing multi-lingual texts, initially written for processing the Sheffield University's METER corpus. By Scott Songlin Piao.