H.P. Lovecraft specialized more in the field of Cosmic Horror than classic ghostly tales. He did, however, publish one of the most highly respected scholarly studies of the ghost story genre.

The ISFDB is an incredible resource for anyone interested in works of fiction, where and when they were published and in what anthologies they appear. An absolutely indispensable tool. From their website: "The ISFDB is a community effort to catalog works of science fiction, fantasy, and horror. It links together various types of bibliographic data: author bibliographies, publication bibliographies, award listings, magazine content listings, anthology and collection content listings, and forthcoming books."

Don't let appearances deceive you. Although this website is a series of very basic html pages, it is an absolute GOLD MINE for anyone interested in the study of Classic Ghost Stories, especially those of the "Jamesian" variety. Created by Rosemary and Darrol Pardoe as a newsletter, it has been archived and expanded. This is probably the largest collection of scholarly research on the ghost stories of M.R. James you will find anywhere. It hasn't been updated in years and Darrol passed away in 2021 so please visit soon, there is no telling how long the site will still be available.

From Wikipedia: "The Internet Archive is an American non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, software applications, music, audiovisual, and print materials. The Archive also advocates a free and open Internet. Its mission is committing to provide "universal access to all knowledge." The Internet Archive is one of the first places to look if you are searching for photo scans of actual books. A great place to find images of the original printed books, especially those that have been out of print for many years. This is especially useful for verification of digital versions since they are prone to transcription or scanning errors.

From Wikipedia: "Project Gutenberg is a volunteer effort to digitize and archive cultural works, as well as to "encourage the creation and distribution of eBooks." It was founded in 1971 by American writer Michael S. Hart and is the oldest digital library. Most of the items in its collection are the full texts of books or individual stories in the public domain. "

Online digital library with millions of digital books. From their website: "HathiTrust was founded in 2008 as a not-for-profit collaborative of academic and research libraries now preserving 18+ million digitized items in the HathiTrust Digital Library."

Wikisource is a digital library of public domain and freely licensed texts, films and similar material. Like Wikipedia, it is a project of the Wikimedia Foundation. It can be used by Wikipedians to provide the full text of documents, further reading or sources for citations.

From their website: "With over a hundred million files, Wikimedia Commons is one of the largest online repositories of media files. Built from the works shared by thousands of volunteers, Commons hosts educational images, videos, and audio files that are used by Wikipedia and the other projects of the nonprofit Wikimedia Foundation. All of the works on Commons are under a “free license.” That means they can be used and shared by anyone, for free, just by following the license rules – usually by giving credit to the author and preserving the license so that others can re-share the work as well."