http://www.gravelhillchurchofchrist.com/ click on e-sword files on left column.
Literal translations, including Alexander Campbell's, Commentaries, Sermon collections, article collections like Why I Left . . . etc.
If you do not have e-sword you can download it free here.
As always the inclusion of a useful link does not endorse everything that is taught or included at that link. Use wisdom and caution, and as the old saying goes: eat the fish, but spit out the bones.