I would suggest it should not be limited to murals, but also include important architecture, sculpture and other public art, whether civic or privately owned. And that map could have layers, for example, if you only want to see architecture, utility boxes, or murals. This was my original first attempt a few years ago: LocalArtWalk.com.
I would love it if we also had a directory of artists, but that may be for another day/team.
The City of Oceanside has a GIS mapping department and that would be optimal, I think, to create the main online map. See Walnut Creek for an example (we could format differently to make cleaner, see Oceanside Brewery tour map).
We need to collect the following info for each mural:
- Title
- Artist
- Year
- Location
- Funding Source
- Short description
- History / how it came to be (optional)
- Links to any news articles/publicity (optional)
Optimally, each mural should have a video interview of the artist and possibly the sponsor, depending on the project origination story.
Some other cities that have online walking tours, to use as reference:
- Walnut Creek - GIS map of all, walking tours
- Coronado
- Oakland
- Murals of La Jolla
