This website and publication offers quick advice on a series of situations for today's business professional.
This website along with the magazine, audio material and grammar plus covers anything you could encounter in the English-speaking world. I know of not only beginners, intermediate and advance learners to collect the magazines and listen to the audio podcasts: native-speakers appreciate it as a good way to update their business skills.
Sponsored by the New York Times, you can ask almost any question about a topic on this website. You can also sign up for free newsletters on a subject matter, for example human resources.
This website is geared to anyone who works in human resources or has to do with personnel matters. It provides a free newsletter on current topics of interest. While the information is geared to the US market, human resource managers tell me it is interesting to see how Americans do things and to compare.
Here you'll find a quiz on superstitions and prepositions. It is suited for false beginners up to advanced speakers of English and provides lots of fun. Break a leg!
This online dictionary is a product of the TU Munich. While I prefer to work with native-language dictionaries no matter what language, there are some things which I aprreciate about the website. It is updated regularly, it is good for translating technical German expressions into English and it has idioms.