Using Freebase #2: auto-completion
Freebase has a feature that makes adding meaningful information very easy. This feature is auto-completion. The first screenshot below shows me editing my country of nationality. As I type Freebase suggests topics and tells me their type. The second screenshot shows that, if I mouseover a type, Freebase will give me the description of that type (from either a Freebase description or part of the wikipedia article on that topic). Everything loads pretty fast so it is surprisingly helpful.