The spread of corpus and lexical resources in linguistics has been led to a great level of theoretical survey and enhanced the empirical foundation, not only with respect to sampling and annotation, but also with exploratory data analysis.
more recently there have been long discussions about what the current state of art in corpus linguistics fails to do, which can be pinpointed at least in two respects: (1) the lack of socio-cultural (meta-) information reflected in the data, is incompetent for pragmatic usages and discourse analysis; (2) rather skewed with data in the public domain, heterogeneity of (individualized) language usages and development is not able to be traced.