My group uses Discord. A voice channel for discussion, and a main gaming text channel for dice bot, handouts, and other active roleplaying stuff. One player has digitized his character sheets, and for others I as the DM keep records. After scenarios I send scans of the character sheets to players. And we have other text channels for keeping records of dead characters' sagas, rules discussion, Glorantha discussion, general chat, low brow humor, and for discussing when we are going to play the next time.
e: We used Skype for video once when the characters were playing the Faro Wheel in Casino Town, so that the players could see my toy roulette set. The Faro Wheel worked as a normal roulette, except that fumbled Luck checks invalidated wins.