The NTSB recently made available to the public a new General Aviation Accident Dashboard. The Dashboard makes it much easier to search the database of accidents from the present back to 2012. There are several default search filters with the ability to use custom filters. The dashboard also permits searching the NTSB accident findings (causes) and the NTSB safety recommendations.
The NTSB has also published on YouTube (and available below) four video tutorials explaining the use of the dashboard and each of its data presentation pages.