2. The one or more computer-readable media of claim 1 , wherein the method further comprises receiving a search query and determining one or more related queries using the information associated with the directed graph.
2. The one or more computer-readable media of claim 1 , wherein the method further comprises receiving a search query and determining one or more related queries using the information associated with the directed graph. 3. The one or more computer-readable media of claim 2 , wherein determining one or more related queries using the information associated with the directed graph comprises identifying the search query as a first node in the directed graph and identifying the one or more related queries as additional nodes linked to the first node in the directed graph.