Great content provides value only if visitors can find it.
As the site grows and matures, re-evaluate the navigational structure for ease of use. If so, clearly link to the new section from the home page or from a page one click removed from it. If the new content fits logically within an existing section, provide a clear link from that section. Update the site map to reflect the addition of new content. If you have a search feature, be sure the new material contains key words and phrases.