Bonayo.org is free user-supported software that helps San Francisco citizens see every 311 call in the City. You can see every current 311 call in San Francisco. Those calls will appear on a map. You can also run reports to see past calls. You can make Bonayo only show you certain types of calls. You can also tell Bonayo to only show calls from certain areas.
You can even tell Bonayo to notify you when new calls come in. But the best way to understand Bonayo is to try it for yourself!