English as a Lingua Franca (ELF) is a fairly new area of study as the use of English between non-native speakers becomes more prevalant.
There are several corpora being developed for study in this area. In this description of such corpora, I refer to Braj Kachru's "Concentric Circles" model, which is concisely described at http://en.wikipedia.org/wiki/Braj_Kachru
The first major resource was ICE, begun at the University College of London, which focuses on the dialects spoken in what Kachru calls "the Outer Circle".
The International Corpus of Learner English (ICLE) was then created at the Catholic University in Louvain, Belgium. ICLE was intended to complement ICE by extending it to Kachru’s Expanding Circle.
Other applicable corpuses that are currently under construction include the Vienna-Oxford International Corpus of English, which is comprised of spoken ELF data, and the Corpus of English as a Lingua Franca in Academic Settings, which was created by researchers who claim that attempting to study a “standard, international variety of English is both an unrealistic and undesirable goal”, and that ELF should be studied in specific domains such as academia.
IceCorpus is located on Jones.
References:
Burt, C. (2005). “What is International English?” Teachers College, Columbia University, Working papers in TESOL and Applied Linguistics, 5(1). Retrieved October 2007 from http://journals.tc-library.org/index.php/tesol/article/viewPDFInterstitial/72/79