Online Tantra Courses
In recent years, many teachers have begun to offer Tantra teaching via the internet. While it can be useful to have access to information in the comfort of one's own home, there are limits to how much true Tantric understanding can be transmitted through articles and videos.
Traditionally, Tantra was taught in the framework of a guru-disciple relationship. Many online Tantra teachers are self-taught, or have learned from schools which don't have a lineage of Tantric teachers. Some online Tantra teachers have devoted themselves to studying traditional Tantric texts in the original languages. Even for these individuals, without the assistance of an initiated guru, it is unclear how accurate their understanding of the teachings can be. Traditional texts are often written in symbolic and allegorical terms, and these subtle meanings are the essence of the Tantric teaching.
A guru-disciple relationship also provides supervised practice and ongoing mentoring, which can be difficult to arrange in an online relationship. The practices of satsangs, diksha, and initiations rely on energetic transmissions, which are arguably less effective if the meeting is not held in person.
There are, of course, certain parts of the body of Tantric knowledge which can be conveyed as pure information. General information about the various forms of yoga, the chakras and bodies, forms of meditation and purification, rituals, and so on, can be learned without the need for detailed guidance. In particular, the Neo-Tantric practices designed to improve sexual practice are both popular and easy to learn in an online setting.