In one of Keith's short B&W photography videos, he looks at how colour photos you've overlooked or forgotten may make for great black and white images.

How even basic conversions from colour to B&W can give a whole new aspect of your photography to explore.

The B&W conversion example is from: https://youtu.be/sMP1ytLYiAE

There are many more dedicated B&W related articles, reviews and videos on the Northlight Images site at:

http://www.northlight-images.co.uk/digital-black_and_white-photography/