One of the most valuable resources of the english language is the dictionary. I won't get into the history of the dictionary or what it's done for literal society. I will note that incorporating inline definitions into reading apps is not the easiest thing to do. Sure, we now have eReaders like Apple's iBooks and the Amazon Kindle that have dictionary integration built in, but what about the rest of of the text-based universe?
Back in July, ProgrammableWeb reported that Dropbox had launched a beta version of the Dropbox Datastore API which provides a new method of syncing and storing data on Dropbox. Dropbox has just announced that the Datastore API is now out of beta and the first stable version of the API has been released.
The Big Huge Thesaurus API provides a convenient interface for initiating a search based on an English word and retrieving related words and phrases.
The Big Huge Thesaurus includes more than 145,000 english language words.