Overview Italy Stamp Catalogues
Italy Stamp Catalogues (books)
Italy
Italy Stamp Auctions/Marketplaces
Catawiki
Ebay
Italy Online Stamp Catalogues
Michel (German/English) – Most complete online stamp catalogue with actual prices (subscription required)
Colnect (all language) – Colnect (premium) has auto-matching, best matches and an extensive free stamp catalogs
iBolli (Italian) – Complete free catalogue of Italy and European stamps
i bolli delle colonie (Italian) – Italian colonies
Stamps of Italy and Italian Colonies (English) – with Sassone catalogue numbers
StampsItaly (Italian/English) – All stamps till 1995, with Sassone and Scott catalogue numbers