Google trusted photographer creating 360 degree virtual reality photos (photospheres) for google maps or website embedding.
I use a method using a Digital SLR camera and take multiple images that are compiled into a single image. This is slightly slower than some methods of creating these images, but creates a higher quality image to showcase the location.
These images are best used to support a description of a location, such as venues, hospitality and locations to visit to give an idea of what the location is like.
How many photospheres are needed? Just the right amount. Some locations only need a few to showcase them properly