The Index to Philippine Newspapers (IPN) is the University of the Philippines Main Library's index to locally published newspapers. The newspaper index, which started in 1981, was originally a guide to eight (8) locally published newspapers, namely: Manila Bulletin; Philippine Daily Express; Manila Chronicle; Philippine Daily Inquirer; Philippine Star; Malaya; Manila Times; and Times Journal. 

The IPN Online 2.0 is a complete article indexing and newspaper management system. It includes the following major features: Newspaper Management / Issue Management, Article Indexing, Robust Search Engine with Full-text Search Capability, Built-in Authority Record (for subject and name headings), Virtual Cart (for bookmarking records, printing, sending to email), and Digital File (full-text article) Download.