Jason Dorweiler:

We’ve heard from a lot of users about how much they love bangs. Unfortunately, finding bangs for your favorite sites from our current list of over 6000 bangs can be kinda difficult. To help with this we’ve taken a few steps to improve bang discovery.

Entering “!” in DuckDuckGo’s search box will now pop up an autocomplete menu with a list of Bangs and if a word in your search term matches an existing Bang you’ll receive a message letting you know which one you could have used.