Zach - Internet access is available in all provinces with varying levels of stability. All the figures we have found suggest only about a quarter of Afghans use the internet, specifically on their phones. We have followed certain Afghans who do exactly this, using technology to help provide education to remote and/or underserved areas of Afghanistan. I great account to follow for such activity is The Helmand Journal. He is doing a lot of good work and has opened at least a half dozen schools that I can think of. But he's only one person.