For example, a Publications page may consist of a bibliographic list of published articles from the agency's researchers. Some of these lists have no full text available online. Other government sites simply make their publications catalog available. Plenty of sites do include full-text online documents in such sections. But even for those that do, there may be additional publications available on the site in other sections as well.
Press releases are the most obvious example.
Often listed under News, Press, What's New, or Public Affairs, government press releases can contain substantial information content. In addition, these sections may include additional publications beyond press releases. Some government sites that only have a publication catalog on their Publications page actually have some online publications, but only on the press release page. If you know a particular publication's title, try searching for that using the local site-search capability. Also, look carefully at publications lists or a catalog.