Writer's Secret finds associations between words by exploring Google's massive database of books in their Google Books Ngrams data set. Look for word types(verbs/nouns/etc) that frequently follow/come before a word. Indispensible for any writer's toolbox!
An invaluable tool for writers, Multisaurus is a powerful and exciting new type of thesaurus. Not just merely a list of synonyms, Multisaurus is a platform for discovering the connections between the synonyms of multiple words.