Beginning in 2009, the List of Serials Indexed for Online Users (LSIOU) will be produced only in XML, while continuing to be available through the end of 2008 in both XML and PDF formats. Also, the List of Journals Indexed for MEDLINE (LJI) will be discontinued at the end of 2008 and its data will be available through the Journals Database and other NLM resources.

Additional journal information:

• MEDLINE/PubMed Resource Guide
• Journals Recently Accepted by NLM for Inclusion in MEDLINE
• NLM Databases and Electronic Resources