Craftsy has a multitude of crafting classes available online, including weaving and spinning.
School of SweetGeorgia is a community of multicraftual makers and textile artists offering many online classes.
School of Weaving by Jane Stafford offers video weaving tutorials, currently 7 years of instruction are available covering topics from warping your loom to profile drafting.
Handweaving.net is the creation of Kris Bruland, a software architect and weaver. Handweaving.net is a weaving archive containing over 70,000 thousand drafts. It also offers several useful tools for weavers such as draft color design, block substitution, video tutorials and a gallery.
John C Campbell Folk School is offering online classes in fiber arts and much more through an app called Lessonface.
Weaving with Janet Dawson has so much to offer. Janet is a weaver, teacher and writer – check her out.