With January 1, 1835, was issued in Boston the first number of The Boston Observer and Religious Intelligencer, a weekly of eight three-column pages, edited by Rev. George Ripley. It was continued for only six months, when it was joined to The Christian Register, which took its name as a sub-title for a time. Its motto, "Liberty, Holiness, Love," was also borrowed by that paper.

The Western Messenger was begun in Cincinnati, June, 1835, with Rev. Ephraim Peabody as the editor. It was a monthly of ninety-six pages, and was ably edited. Owing to the illness of Mr. Peabody, it was removed to Louisville after the ninth number; and Rev. James Freeman Clarke became the editor, with Rev. W.H. Channing and Rev. J.H. Perkins as assistants for a time. It was published by the Western Unitarian Association, and was discontinued with the number for May, 1841. Among the contributors were Emerson, Margaret Fuller, William Henry Channing, Christopher P. Cranch, William G. Eliot, who aided in giving it a high literary character. For a number of years the American Unitarian Association made an annual appropriation to aid in its publication.

The Monthly Miscellany of Religion and Letters was begun in Boston with April, 1839. It was a 12mo of forty-eight pages, monthly. The editor was Rev. Ezra S. Gannett, by whom it was "designed to furnish religious reading for the people, treat Unitarian opinions in their practical bearings, and show their power to produce holiness of life; and by weight of contents to come between The Christian Register and The Christian Examiner." It was continued until the end of 1843, when it was absorbed by the latter periodical.

With the first of January, 1844, was begun The Monthly Religious Magazine, to meet the needs of those who found The Christian Examiner too scholarly. The first editor, was Rev. Frederic D. Huntington, who was succeeded by Rev. Edmund H. Sears, Rev. James W. Thompson, Rev. Rufus Ellis, and Rev. John H. Morison. The last issue was that of February, 1874.

A large weekly was begun in Boston, January 7, 1843, called The Christian World, of which Rev. George G. Channing was the publisher and managing editor. He was assisted by Rev. James Freeman Clarke and Hon. John A. Andrew, afterward Governor of Massachusetts, as editors or editorial contributors. The special aims of the paper were "to awaken a deeper religious interest in all the great philanthropic and benevolent enterprises of the day." It was continued until December 30, 1848. George G. Channing was a brother of Dr. Channing, and was settled over two or three parishes. The paper was ably conducted, and while Unitarian was not distinctly denominational.

The Christian Inquirer was started in New York, October 17, 1846, and was a weekly of four six-column pages. It was managed by the New York Unitarian Association; and it was largely under the control of Rev. Henry W. Bellows, who in 1850 was assisted by Rev. Samuel Osgood, Rev. James F. Clarke, and Rev. Frederic H. Hedge.

In 1846 was begun the publication of the Unitarian Annual Register in Boston by Crosby & Nichols, with Rev. Abiel A. Livermore, then settled in Keene, N.H., as the editor. In 1851 the work came under the control of the American Unitarian Association, and as the Year Book of the denomination it was edited by the secretary or his assistant. From 1860 to 1869 the Year Book was issued as a part of the December number of The Monthly Journal of the American Unitarian Association.

The Bible Christian was begun in 1847 at Toronto by Rev. John Cordner, the minister there, and was continued as a semi-monthly for a brief period.

The Unitarian and Foreign Religious Miscellany was published in Boston during 1847, with Rev. George E. Ellis as the editor. It was a monthly magazine devoted to the explanation and defence of Unitarian Christianity; and its contents were mostly selected from the English Unitarian periodicals, especially The Prospective Review, The Monthly Reformer, Bible Christian, The Unitarian, and The Inquirer.