Libertarian Papers is indexed in a large number of indexing and related services, and, since May 2009, has been indexed in the Directory of Open Access Journals (DOAJ) (see Libertarian Papers Indexed in DOAJ). Our journal entry is here.
Apparently each article published in LP has to be manually added to the DOAJ index via our publisher interface. The only article included at present is our very first article; the remaining articles from Vol. 1 (2009) are not yet included, nore are any articles from Vols. 2 and 3 (2010-2011). I need a volunteer to manually add these approximately 100 articles to the DOAJ database manually via the publisher interface. Then I can add new articles to the DOAJ database each time we publish a new article.
If you are interested in assisting, please let me know (contact).