[This is part 2 of my Study of Digital Card Games series.]
The first notable CCG that made it to the digital space was, guess who, Magic! There have been several software allowing to play the game on a computer, but the first to embrace online play was Magic: The Gathering Online, shortened as MTGO and released in 2002. The pitch is simple: it is exactly the same game, but playable on a computer with folks from all around the globe. It is still active today.