The Longman Dictionary of Contemporary English Online (LDOCE) is owned and operated by Pearson Education Limited. It is powered by IDM, an XML content management software. LDOCE is built using the Longman Corpus Network, a database of 330 million words from various real-life sources. The corpus allows the dictionary to provide full coverage of word combinations and analyze typical learner mistakes. Users can search words, view definitions with examples, and listen to pronunciations. It also includes tools like Word Focus and Word of the Day.