We use Skype for instant messaging, cheap voice calls including very reasonable rates for international calls, and video conferencing. I've long been a fan of face-to-face communication as I think you lose something from email-only interactions. And while phone calls are a step up from text-only media such as email and IM, there's no replacement for the visual cues and context that video can provide. In-person meetings are better still, but the logistics and costs of meeting frequently in...
