A selection of some of my favourite research related links:
Price One Penny: Cheap Literature, 1837-1860 (database)
Victorian London (encyclopedia on Victorian London).
Romantic London (a project which maps London based on Richard Horwood’s ‘PLAN of the Cities of LONDON)
Digitial periodicals (serialize penny bloods for the modern reader. Titles include Varney the Vampire, The String of Pearls etc.).
The Victorian Web (database/ encycopledia. Contians information on all things Victorian, as well as short bibliographies on authors and painters).