I used to joke that I am only highly literate in one language (English). It's a bad joke, but it highlights the problems in communicating in writing where there is a language barrier. Facebook has a translation function, and when a colleague writes in Chinese characters I am able to read a rough translation at a click of a link. Providing this functionality in an easily accessible manner is important. Before, I couldn't be bothered copying the text, searching for an automatic translation website, pasting the text, then deciphering the translation. Now, all I have to do is click a button then decipher the translation.