364 THE FACTS ON FILE GUIDE TO GOOD WRITING electronic spell-checker so that its performance should in theory steadily improve. Stand-alone spell-checkers generally offer more choices than those included in standard computer packages. One less avoidable and more significant drawback to electronic spellcheckers is that they will not correct a word that has been misspelled if it happens to be identical in form with another word that they hold in their word bank, for example, there for their, fro for for, whoâ€™s for whose, and your for yourâ€™re. It is possible to install computer programs designed to check grammar and readability. These will query grammatical and stylistic errors such as repetitions of the same word, overlong sentences, and the suitability of certain words in a particular context. It is possible, for instance, to set the computer to check the appropriateness of the vocabulary in a business document or in a piece of informal writing. Such programs tend to lack flexibility, however, and rarely work as well as might be hoped: Care should be taken not to rely too heavily on them. For discussion on use of electronic resources, including the Internet, when undertaking research, see under COLLECTING MATERIAL (page 13).