The two largest libraries of Austen fan fiction can be found at Austen.com (austen .com) and The Republic of Pemberley (www.pemberley.com), noncommercial sites devoted to all things Jane.
[Internet Archive June 23, 2012] Any set of statistics about word frequencies in Latin will inevitably be, in the absence of a survey covering all classical texts (however one might define "classical" or "text"), a function of the specific works and passages chosen for the database. This collection is drawn from two word counts made much earlier in this century...
Z. Cheng, J. Caverlee, and K. Lee. Proceedings of the 19th ACM International Conference on Information and Knowledge Management, page 759--768. New York, NY, USA, ACM, (2010)
S. Zhang, and S. Goddard. International Conference on Information Technology: Coding and Computing, 2005. ITCC 2005, 2, page 443-- 448 Vol. 2. IEEE, (April 2005)