You might have heard: Facebook is launching Instant Articles with a group of partner publishers, looking to decrease page load times on mobile

But did you know: Google and Twitter are partnering to launch their own version of Instant Articles this fall with a small group of publishers. The main difference between Instant Articles and Google and Twitter’s competitor is that their publishing tools will be open-source, allowing other companies to adopt the tools. Google and Twitter also will not host publishers’ content, and readers will be shown cached pages from publishers’ sites.