The Internet is a true cornucopia of linguistic knowledge. The Internet is an indispensable source of linguistic information for today's language consultants. Now I could not manage without the Net. It allows me to quickly check in what kinds of contexts certain words or phrases are actually used. Search engines are a great complement to traditional dictionaries, which inevitably have a very limited stock of usage examples.
Discussion forums are another highly useful resource.
Questions posted to that forum almost always receive several replies. Of course, one should post a question only if a good dictionary or grammar resource fails to provide the answer, while remembering that carefully worded questions giving enough background information are especially likely to produce relevant answers. There are also language sites maintained by individuals offering help for free. In addition to being helpful information sources, such resources have provided me with lasting friendships across continents. People typically send their texts to me as formatted e-mail attachments, which saves time and increases the flexibility of distance work.