Robleh Jama has been using Medium to share press kits for apps:

When you put everything a blogger needs for their article in one spot, they’re going to like that. They’re going to appreciate you because you didn’t just do what’s most convenient for you. You actually thought about them. And even if they don’t write about you now, it starts the relationships on the right foot.

We kept it as unlisted because we figured that it’d be best for bloggers and journalists to get the details first, before passing it along to their audiences. Unlisted posts on Medium are visible to only those who have the link. It won’t be listed on Medium’s public pages or your profile. You can choose to keep it as a draft, or publish the post as an Unlisted post, like we did, or a public post.

I agree with this. I’ve been sent a few Medium-hosted press releases over the past few months – most recently, one for Pigment – and the experience was better than having to download a bunch of PDFs and folders full of screenshots. Perhaps Dropbox could leverage the convenience of easily editable/linkable documents with Paper (imagine if you could combine text and media stored somewhere else in your Dropbox within a single shared document).

Side note: if you’re looking for something a bit more customizable and advanced, I can’t recommend presskit() enough.