PELCRA (Polish and English Language Corpora for Research and Applications) is a research group at the Institute of English Studies, University of Łódź, Poland, which was originally started in 1997. The group’s main research interests and activities include corpus and computational linguistics, natural language processing, information retrieval, and information extraction. Since 1997, the corpus resources and tools for both English and Polish corpus data have been successfully applied in academic and technological research, as well as in the domains of language teaching, translation, lexicography, and language processing. A list of the corpora, search engines, language processing tools, and electronic dictionaries developed by different members of our group can be found here.