Let’s Encrypt offering free encryption
Encryption is increasingly an important and relevant topic when it comes to web development (security, ServiceWorker-powered offline pages, etc), but the costs involved make it prohibitive to devs wanting to dip their toes in the subject. Let's Encrypt looks to offer a free service which should be a big help to everyone in making the web more secure but also more available when stuck in a tunnel somewhere without wifi.
Tim Kadlec discusses it in his "Taking Let's Encrypt for a Spin" article.