Read the passage and complete the sentence.
It is a problem. The University is closed, you don`t have a computer at home and you need to finish some research. What can you do? The answer may be a cybercafe, a new kind of cafe opening up all over the UK. They offer the usual selection of food and drink but are also equipped with computers for their customers to use. As well as continuing your research project until late in the evening you can book a computer and blowse on the internet exploring all the information and services available. For a small charge, international students can also get an e-mail address and use the cafe as a post office.
Messages sent electronically via computers are ... .