Be sure to check out the NIH Public Access Policy website.  New/revised content includes:

Citation Methods This new page provides guidance on how to cite and locate the PMCID.

Journals that Submit all NIH-Funded Final Published Articles to PubMed Central  This revised page includes the NLM abbreviation of the journal, the eISSN, the pISSN, and the start date of indexing in PubMed Central. The listing of journals is updated at least once a month.

Public Access Communications and Training This revised page includes new PPTs and a brochure that can be used to learn more about the NIH Policy.

Also, there are two new videos that may be helpful to NIH-funded authors:

Submitting an Article to PubMed Central

Approving Submission of an Article to PubMed Central