For many years, computerized concordancing has been the domain of computational linguists, lexicographers, and dictionary compilers working with large corpora of millions of words. The use of small-corpora concordancing in English-as-a-Second-Language (ESL) settings is a relatively new application and has sparked keen interest among researchers and teachers since the mid-1980s. This paper discusses the use of small-corpora concordancing in three domains of ESL: (1) syllabus design and evaluation; (2) classroom teaching; (3) test construction. In particular, the classroom concordancing approach as an evolving ESL methodology is discussed with reference to its rationale, its potentials, its current applications, and its impact. The paper concludes with some critical comments on what has been achieved so far with small-corpora concordancing and points out some directions for the future. (Author/JL)