Do you use Mastodon? Do you have a WordPress site? Starting today, you can use the Jetpack plugin to automatically publish your posts to your Mastodon account.
When writing new posts or editing existing posts in the WordPress editor, you have the option to automatically share that post (alongside with some text and an image) with your Fediverse followers.
Give it a try and let us know what you think! We'll continue to iterate on the feature in the next few weeks, and would be happy with any feedback you may have. :)
Note: we've developed the feature with Mastodon in mind, but we know there are dozens of microblogging tools allowing you to post to the Fediverse today. Our integration already works with some of those tools out of the box, but not all. We're definitely aiming to support other aspects of the Fediverse in the future.
And another note: maybe you'd rather have your site become its own ActivityPub actor? That's possible, too! You can install the ActivityPub plugin, and each author on your site will have their own ActivityPub account, where each one of their new posts will be pushed.