1. Hymn Resource

1. Louis F. Benson Collection of Hymnals and Hymnology
    http://commons.ptsem.edu/benson

2. Hymnal: Christ in Song (Edited by Brother Christian Chen of New York)
    https://www.hymntreasury.org

3. Audio Hymnal (by Andrew Remillard)
    http://www.andrewremillard.com

23. Hymn Resource: Radio Hymn Station

1. FBC Radio
    http://www.fbcradio.org/listen/

2. Abiding Radio
    http://www.abidingradio.org

3. Word of Truth Radio
    http://www.wordoftruthradio.com/listen_wotr.php
 
4. Avinu - Sacred Hymns
    http://www.avinu.com

5. Hymn Resource: Audio Hymnal

1. Small Church Hymn Book
     http://www.hymn-books.com

2. Saints Serving, Spiritual Songs Recorded To Help Saints Sing Together
     http://saintsserving.net/index.php

3. The Lutheran Hymnal Of 1941
     http://www.lutherantacoma.com/hymns/

4. Hymn Texts Of Lutheran Hymnal Of 1941
     http://www.projectwittenberg.org/etext/hymnals/tlh/

5. Music, Cornerstone United Reformed Church
     http://www.cornerstoneurc.com/Music.aspx

6. Trinity Hymnal
     http://www.opc.org/hymnal.html

4. Hymn Resource: Hymnology

1. Hymnary.org
     http://www.hymnary.org/person/Watts_Isaac

2. Cyber Hymnal
     http://www.cyberhymnal.org/bio/w/a/t/watts_i.htm

3. A Dictionary Of Hymnology by John Julian
      Volume 1. https://archive.org/details/dictionaryofhymn01lond
      Volume 2. https://archive.org/details/dictionaryofhymn02lond

4. Annotations Upon Popular Hymns by Charles S. Robinson
     https://archive.org/details/annsuponp00robi

5. The Poets Of The Church by Edwin F. Hatfield
     https://archive.org/details/poetsofchurchser00hatf

6. My Life And Sacred Songs by Ira D. Sankey
     https://archive.org/details/mylifesacredsong00sank

3. Hymn Resource: Hymnbook With Words Only

1. Hymn Book Of Free Church Of Scotland
     https://archive.org/details/freechurchhymnb00assegoog

2. Our Own Hymn Book by C. H. Spurgeon
     https://books.google.com.tw/books?id=kslVAAAA.....

3. Hymns For The Church On Earth by J. C. Ryle
     https://archive.org/details/hymnsforchurch00ryle

4. J. C. Ryle's Audio Hymns
     https://librivox.org/hymns-and-spiritual-songs-by-j-c-ryle/

5. Christian Psalmist
     https://archive.org/details/christianpsalmis00phil

7. Lyra Germanica by Catherine Winkworth
      Volume 1. https://archive.org/details/lyragermanica00wink
      Volume 2. https://archive.org/details/lyrager00wink

8. Hymns From The Land Of Luther by Jane L. Borthwick
     https://archive.org/details/landofl00newy

2. Hymn Resource: Hymnal With Tunes

1. Laudes Domini by Charles S. Robinson
     https://archive.org/details/laudesdominisele1884robi

2. New Laudes Domini by Charles S. Robinson
     https://archive.org/details/dominis00robi

3. The Church Hymn Book by Edwin F. Hatfield
     https://archive.org/details/churchhy00hatf

4. Songs Of Grace And Glory by Frances R. Havergal, Charles B. Snepp
     https://archive.org/details/graceglor00have

5. The New Sabbath Hymn Book by Lowell Mason
     https://archive.org/details/abbantu00maso

6. Hymns Ancient And Modern
     https://archive.org/details/hymnsanci00chur

7. Hymnal Of Moravian Church
     https://archive.org/details/hymnalliturgieso00mora

8. The Hymnal Of Presbyterian Church
     https://archive.org/details/hymnal1917pres

9. Gospel Hymns by Ira D. Sankey
     https://archive.org/details/gospelhymns16sank

10. On Joyful Wing by William J. Kirkpatrick
       https://archive.org/details/onjoyfulwingbook00swen

11. Glorious Praise by William H. Doane
       https://archive.org/details/gloriouspraisesp00doan