Online auxiliary sciences

Palaeography: Capelli online: http://inkunabeln.ub.uni-koeln.de/vdibProduction/handapparat/nachs_w/cappelli/cappelli.html

Chronology: Grotefend online: http://www.manuscripta-mediaevalia.de/gaeste/grotefend/grotefend.htm

Place Names: Orbis Latinus online: http://www.columbia.edu/acis/ets/Graesse/contents.html