You may have seen articles that on January 1st of this year books from 1923 started entering the public domain. The useful Michael Dirda at the Washington Post did an article about some of the titles he thought were interesting from that year. (In case the link stops working search for his name and "1923 and me".)
One problem - not a single link actually went to a public domain source for the books. So this piece corrects that. Below is a list of his choices and where you can find the books, completely and legally free.
I expected that these books would appear in downloadable versions on the usual places early in the year but as of this writing many still haven't. I don't really know how these things work and had thought that the sites would just change a parameter or maybe run a sub-routine but clearly it's not that simple. So the list below is more of a hodgepodge than usual.
Willa Cather - A Lost Lady (Open Library, Google Books)
Aldous Huxley - Antic Hay (Google Books)
Ronald Firbank - The Flower Beneath the Foot (Open Library)
Edgar Rice Burroughs - Tarzan and the Golden Lion (Google Books)
Wallace Stevens - Harmonium (Archive.org)
Robert Frost - New Hampshire (Google Books)
H.G. Wells - Men Like Gods (Open Library)
E.V. Odle - Clockwork Man (HathiTrust, which sources the scan to Google but I can't find a downloadable version there)
Jean Toomer - Cane (Archive.org)
Ellen Glasgow - The Shadowy Third and Other Stories (Google Books)
May Sinclair - Uncanny Stories (Open Library)
Dorothy L. Sayers - Whose Body? (Open Library)
D.H. Lawrence - Studies in Classic American Literature (Google Books)
Edgar Wallace - The Green Archer (Google Books)
Walter de la Mare - Come Hither: A Collection of Rhymes and Poems for the Young of All Ages (Open Library)
Sherwood Anderson - Horses and Men (Open Library)
Algernon Blackwood - Episodes Before Thirty (Open Library)
P.G. Wodehouse - The Inimitable Jeeves (Google Books)