While social networking sites already help users maintain connections with friends and interest groups, a recent trend in web services has been the growth of semantic technologies that connect people across different websites. New York startup AdaptiveBlue offer a service called "Glue," which uses semantic web techniques to understand the content of popular web pages that describe lifestyle objects such as books, music, and movies. It then lets you do many useful, in-context things based on that data, such as learn more about the movie or actors on IMDB, buy the soundtrack on Amazon, read the historical background on Wikipedia, and a interact with a variety of other sites and services.
Roistr is a project that’s smaller than our typical API feature. It shows the falling barrier to entry in the API world even in a the demanding academic area of natural language processing and semantic analysis. The primary Roistr API function is a “best match” engine. It offers an interesting use case to demonstrate the relevance of the service: take a Twitter username and use tweets from this account to find content most relevant to the user’s interests.