Netspeak helps you to search for words you don't know, yet. It is a new kind of dictionary that contains everything that has ever been written on the web.
G. Feng, T. Liu, Y. Wang, Y. Bao, Z. Ma, X. Zhang, and W. Ma. Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR \textquotesingle06, ACM Press, (2006)