Then start organizing them into groups. Work out a pattern for linking documents to each other. It's often useful to design a hierarchy, like an organization chart or story-board, that shows the relationships of documents. This also shows the path a visitor will follow to reach information they want. By drafting it before publishing, you can make the presentation easy to understand and follow.
Many offices provide information that actually is managed by another office.
Duplicating it leads to inconsistency. Generally, you will not want to publish another office's information among your documents. Instead, you should link to it. When you find that information provided by another office is integral to the information you want to offer too, talk with that other office. Find out if the information is on the Web or what plans they have for putting it there.