[meritt]

Nothing exists yet [1]. Verily (an Alphabet subsidiary but essentially "Google" for all intents and purposes) is working on a triage website with a limited focus on the Bay Area.

Ultimately it's going to be a slightly more complex variant of "Do you have a fever?" with a map showing nearby testing locations when someone clicks yes.

[1] https://www.businessinsider.com/google-coronavirus-screening...

[Retric]

This is surprisingly useful and difficult to implement well. It’s more than just keeping accurate information up to date, but also ensuring it works for the blind and as many languages as possible etc. Further, the Bay Area is just the initial pilot, their goal is likely nationwide if not international.