If users are likely to print out your pages, documents can be longer and should not be composed of too many small hyperlinked segments. When deciding how many categories to put on a page, use enough to avoid ambiguity, but not so many that they are too disparate and confusing. People tend to scan web pages to look for relevant information, so links with descriptions of what to expect are helpful. Summaries at the top long web pages can also be useful. Particularly for relatively long pages, prominent headings at appropriate places help readers to quickly identify sections of interest.
Large documents are slow to load.
One of the primary complaints of web users is that pages take too long to load. A significant proportion of people will give up rather than wait for a large page to load. Try to keep the total size of documents, including embedded images, to no more than 40k. A significant proportion of web users use a 640x480 pixel monitor. Therefore, try to design your pages not to exceed 600 pixels or so in width.