swot v. & n.; Brit. colloq.; _ v. (swotted, swotting);1intr. study assiduously.;2tr. (often foll. by up) study (a subject) hard or hurriedly.; _ n.;1a person who swots.2a hard study. b a thing that requires this.; Etymology dial. var. of sweat; Oxford English Dictionary. Ed. J. A. Simpson and E. S. C. Weiner. 2nd ed. Oxford: Clarendon Press, 1989.
The Swot's Corner is part of YAELF, which is a site devoted to English Usage - and I'm guessing stands for Yet Another English Language Forum - but that's just a guess. (Oops - after some digging, I found it, and the F stands for FAQ. But I got the rest right.) It discusses word etymologies and origins, the differences between similar words that aren't quite the same, and all sorts of other bits of interesting trivia.