The Illinois Newspaper Project (INP) is part of the U. S. Newspaper Program (USNP). The website includes an interesting history of Illinois newspapers.
The INP database includes newspapers the INP has been able to identify, locate, and microfilm. Its value for genealogists is that it provides more ways search for obituaries and news stories about ancestors and families.
The database lets you search by county, city, title, or subject. It shows when and where the newspapers were published; which repositories in Illinois have which issues; and whether they have original newsprint or microfilm.
Anyone interested in looking at an institution's newspapers should contact the institution directly. Use the Participant Locator or Worldcat to find specific contact information.