The following is a compilation of freely-accessible academic resources related to The United Methodist Church. These resources are about the UMC generally and are not specifically mission-focused.
A free, digital copy of the United Methodist Book of Discipline is available online, though it is not searchable and text may not be copied from it: https://www.cokesbury.com/forms/DynamicContent.aspx?id=87&pageid=920
Methodist Review, a freely-accessible electronic journal for Wesleyan and Methodist studies: https://www.methodistreview.org/index.php/mr/index
Methodist History, a freely-accessible print and electronic journal for Methodist historical studies: http://archives.gcah.org/handle/10516/30
The Asbury Journal, a freely-accessible print and electronic journal for broadly Wesleyan and Methodist scholarship on a variety of topics: http://place.asburyseminary.edu/asburyjournal/
The Wesleyan Theological Journal, a freely-accessible print and electronic journal for broadly Wesleyan theology: http://wesley.nnu.edu/sermons-essays-books/wesleyan-theological-journal-1966-2010/comprehensive-volume-index/
Archives of The Oxford Institute of Methodist Theological Studies, containing all free digital copies of all papers presented at Oxford Institute meetings: https://oxford-institute.org/archives/
Archives of motive magazine, the Methodist Student Movement magazine from 1941-1972: http://sth-archon.bu.edu/motive/motive.html
Christopher J. Anderson and Kenneth E. Rowe's United Methodist Studies: Basic Bibliographies, 5th edition: http://www.drew.edu/wp-content/uploads/sites/70/UM_Biblio_5th_ed.pdf
Methodist and Wesleyan Studies Collection at the Global Digital Library for Theology and Ecumenism (GlobeTheoLib): http://www.globethics.net/web/gtl/collections/methodist-and-wesleyan-studies-collection
Additional links, especially to collections related to John and Charles Wesley, are available from The Methodist e-Academy's Links page: http://www.methodist-e-academy.org/links