Read the Local Newspaper Online or Grab a Hard Copy Upon Arrival
The good ‘ol newspaper is a great resource for discovering local events and happenings. Nowadays magazines and newspapers are almost all online so you can easily do a scan to see what is happening in the area you will be visiting. There might be a church or peach festival that might really introduce you into the local culture. Many of these local events are not advertised in places like the tourism office but are often in the local rag.
Our local paper the Capital Gazette offers a weekend insert with events from all over the Baltimore-Washington area, as well as a daily list of events.