Slack has announced a handful of new capabilities for Slack Connect, which lets you communicate with people outside your organization. Now, you can send DMs to anyone from another company.
Google today announced that it's adding a direct messaging service right into Google Photos. The idea is to make it easier to share your photos, and also for people to like or comment on them.
Twitter is testing an end-to-end encrypted system for its DMs, currently dubbed "Secret Conversations". This could ensure that no one but the participants in a conversation can read its messages.
YouTube has globally released an in-app messaging and video sharing feature, currently only available for Android and iOS users. Videos can now be shared with multiple contacts within the app.