After the Flood: by Bill Cooper. Highly recommended by Doug Phillips and Ruth Beechick, this book examines ancient history and creation and flood stories from ancient cultures, comparing to the biblical narrative. Includes stories from early Europe to trace tales and genealogies back to Genesis.
American Colonist's Library: Treasure trove of source material which "contributed to the formation of American politics, culture and ideals." Here you'll find the Magna Carta, the Geneva Bible, letters and diaries of early colonists and founders, including Bradford's Of Plymouth Plantation and Mourt's Relation and many reformed documents, confessions and treatises.
Books by Annie Fellows Johnston: The author of The Little Colonel and The Three Weavers.
Arthur's Classic Novels: I hesitated to include this link because this guy looks to be a kook, with his inclusion of the "Earth Charter" on his site, but he has so many great books that I couldn't leave it out. More Henty books, P.G. Wodehouse, Kathleen Norris, boys' adventure stories, a bunch of Buchan and Ballantyne and Baroness Orczy's books. I think there's hope for this guy. His site is very navigable and the books are easy to read.
The Baldwin Project: Subtitled "Bringing Yesterday's Classics to Today's Children." This is a treasure trove of books for homeschoolers who want to use living books with their children. You may not have heard of some of these authors, but browse their works and you will be pleased at the high quality of the writing and information. They are in process of including all of H.A. Guerber's histories. This resource will be of special interest to those who use Charlotte Mason or classical education methods for teaching. It will also be attractive to any bibliophile, which means the readers of Buried Treasure.
Bartleby.com: Great Books Online: Look here for great reference books, including Strunk and White's Elements of Style and Bartlett's Familiar Quotations. Also find the complete Harvard Classics, Arthur Quiller Couch's Oxford Book of English Verse and many of Theodore Roosevelt's writings, including his letters to his children.
Biography of Deborah Alcock: From Inheritance Publications, about a Christian author who wrote wonderful historical fiction for young people in the 1800s and who was a great defender of the reformed faith, especially against the false teaching of the Roman Catholic church, in her native Ireland. Her books in print include stories of the Huguenots, the Hussites in Bohemia and the Armenians who suffered severe persecution from the Muslims in the late 19th century.
Christian Classics Ethereal Library: From Wheaton College, many Christian and classic books. Look for Thomas Boston's A Crook in the Lot (a very encouraging book about affliction), works by other Puritan authors, Abraham Kuyper's writings and Calvin's Bible commentaries. Several mp3s as well, including the Greek New Testament.
Classic Reader: As its title suggests, many classics, and there are many which will appeal to kindred spirits of Buried Treasure. This site is very easy to use. Look for lots of books by G.A. Henty, Kathleen Norris (author of Mother), Tom Swift books, the Twins of the World books of Lucy Fitch Perkins, Joseph Altsheler's Civil War adventures and over 1000 short stories.
The Destruction of Jerusalem: A booklet by George Peter Holford, recommended by Pastor Joe Morecraft, written in 1805 about the details of what happened in 70 A.D. when Jerusalem was completely destroyed by the Roman army in fulfillment of prophecies in Revelation and Matthew 24 and Luke 21. If you or your friends have only heard the dispensational view of these biblical prophecies, this is a must-read.
Documenting the American South: Extensive writings from those who lived in the South during the time of the War Between the States. Includes many diaries of southern women, some of which have been reprinted, including A Diary From Dixie by Mary Chestnut. Also look for sermons of the time and personal letters.
Electronic Text Center, Books for Young Readers: From the University of Virginia, look for Howard Pyle's Men of Iron and Book of Pirates, both illustrated!
Feeding America: The Historic American Cookbook Project: These are complete historic cookbooks, with their scanned digital images, so you can only see a page at a time and you must wait for each page to load. But here you can find the once rare Mary Frances Cook Book by Jane Eayre Fryer (do a search for it in the sidebar)!!
Free Books Online: Gary North's site with all his books as well as others by great reformed authors such as David Chilton, Gary Demar and Kenneth Gentry.
Free History Books: These are books about U.S. History...there are links in the sidebar to history books about other nations. There are many source materials here. Look especially for the books by Albert Bushnell Hart which have been republished as Source Readers in American History: Camps and Firesides of the Revolution and Colonial Children.
G.K. Chesterton's Works on the Web: A very complete list of links to Chesterton's works, including his non-fiction, fiction, essays and poems.
John Piper Books: Even though most (if not all) of these are in print, they are also made available online by Desiring God Ministries, and though I think a laborer is worthy of his hire, I think it says a lot about Pastor Piper's ministry that he is willing to make his books available on the internet as well as in bookstores. You will find the popular Desiring God as well as Don't Waste Your Life, The Passion of Jesus Christ, Recovering Biblical Manhood and Womanhood, and others.
Library School Resources: Many works of literature here, including several by my favorite authors John Buchan and G.K. Chesterton.
Making of America Books: A digital library of primary sources of American social history. Includes Dabney's books On the Defense of Virginia and Life and Letters of General Stonewall Jackson The texts are scanned and must be loaded a page at a time.
Ongoing Tales From the Past: has fairy tales, poetry, story books and Bible stories for children. Their works include old-fashioned out-of-copyright illustrations. Annoying music plays when you open each page, so you might want to turn your sound off before you click.
The Online Books Page: From the University of Pennsylvania, links to over 20,000 books. Look for the works of R.M. Ballantyne, a Christian author of exciting adventure stories for boys, and many P.G. Wodehouse books and stories.
Online Christian Books: All the authors are listed on one page, so it's easy to find their works. Includes both old and new authors. Look for J. Gresham Machen's Christianity and Liberalism, John Piper's books and links to some of Robert Lewis Dabney's writing.
Political Sermons of the American Founding Era, 1730-1805, edited by Ellis Sandoz: From the Liberty Fund, this book is available in a printed version, too, with wonderful sermons reminding how God is America's King and we all owe Him homage and obedience, even our political leaders.
Project Gutenberg: One of the first providers of etexts, their site has a good explanation of how copyright works. Includes light literature, heavy literature and reference works. You can find The White Company here.
The Rosetta Project: Lovely antique books which are scanned and available for download. There are several which are translated into other languages (which will be of interest to you, Laura N.!) 2000 books so far.
Secrets of a Happy Homelife: Booklet by J.R. Miller, his writings about home life are such a treasure and essential for Prairie Muffins and Muffin Mixes to read!
The Spurgeon Archive: Wow. Complete books by the Prince of Preachers, including The Treasury of David and The Sword and the Trowel, sermons, articles and the classic devotional, Morning and Evening. Make sure to read about his library (he was a bibliophile!) and look for John Ploughman's Talks and the Farm Sermons. I don't have enough time to read. Sigh.
The Underground History of American Education: by John Taylor Gatto. The complete book by former New York State Teacher of the Year, exposing the rotten roots of the government school monopoly.
World Wide School: Some of the more interesting selections at this site are the poetry anthologies, the biographies and Logan Marshall's The Sinking of the Titanic, which has been reprinted by Vision Forum.