This is awesome. They've managed to identify many little utilities that users need occasionally. Google has a similar set of utilities, but it is only accessible through the search-bar, and you need to know what you're looking for. DDG's is much easier to browse/use.
So, anyone can suggest or create instant answers and it works out better that they're open source, since people who are most passionate about a topic (movies, legos, pokemon, gardening, etc) will know the best sources for it and the best information to display.
