The Broker takes the Gatherer's information and builds a searchable index. At MIT, Harvest has been set up to index the web.mit.edu server once a week. Users at MIT can search this index via a search field at the bottom of the MIT Home Page. More focused queries usually get better results in less time. You can specify these options with buttons and menus in the Extended Search query form.
Structured queries are very useful for refining searches.
For example, you can limit a search to find matches only when a specified term appears in a title or heading of an HTML document. This is more likely to return relevant matches than a full-text search. Similarly, if you are looking for images related to a certain topic, you can limit the search to HTML image references. While Harvest is a powerful system, it cannot search all the Web pages at the Institute. In the future, other servers may be integrated into the Harvest system.