Online sites, Project Gutenberg and Ceramics.it, are a useful tool for identifying Italian porcelain marks. Other sites, such as specialist forums, may assist in identifying a particular ceramic mark. There are also specialist books available, that can be found on websites, such as Amazon. Also, on selling page sites, such as eBay, sellers often include information about hallmarks, though these may need further clarification.
Italian ceramics are renowned for the production of tiles, sophisticated majolica designs and Capo-di-Monte. Capo-di-Monte was first produced in Italy, later moving to Spain. Majolica became popular in the 15th century, with production in Florence. By the 16th century, it was also produced in other Italian cities, such as Rome and Naples. By the end of the same century, majolica production was in decline, due to economic problems.
Regional ceramic makers in Italy are still manufacturing quality ceramics and can be found at online sites, such as Thats Arte. This site is also a place for identifying local Italian ceramic artists, such as Eugenio Ricciarelli, who produces unique hand-painted Italian pottery.
Often the age of ceramics can also be identified in the pattern, which can be unique to a particular manufacturer at a certain period in time.