Morning Tech Crawl: What to expect from Facebook's developer conference

Also on the agenda at F8 is Messenger, Facebook's standalone messaging app with more than 900 million active users, and company is expected to launch tools to help developers easily build chatbots into Messenger.

Feeling overwhelmed by all the new communications apps that are supposed to make you more productive? Stewart Butterfield, founder of corporate-messaging app Slack, gets it.

While the Slack app, which has 2,7 million users, is supposed to cut back on endless texts, emails and calls, Butterfield acknowledged that it's really one more thing to check. At the Bloomberg Businessweek Design Conference this week, he called the messaging craze a form of "cognitive diabetes," adding it's "a problem that's going to take more than a generation to sort out."

Google said today it's scaling up its digital skills training programs in Africa, which has the fastest Internet user growth rates in the world,. The goal is to reach a million Africans in the next year, which could help push down the high unemployment numbers on the continent.