R-O-Matic Italian/English Dictionary Basic Italian/English glossary with more than 1,600 terms. It is currently being updated. Interactive feature: users can help by adding new terms.
The LOGOS Dictionary Free terminology database, constantly updated and reviewed by native translators. Featuring the impressive Wordtheque multilingual search facility.
Base Vergues : notion 3 Multilingual Dictionary of Nautical Terms - Italian section. A remarkable tool, providing not only translation but also descriptions of nautical terms in the target language.
The Internet Picture Dictionary: Italian Free, online multilingual picture dictionary with interactive activities for Italian, English, French, Spanish, German and ESL learners.