Harald van Breederode is an Oracle DBA trainer working for Oracle University in The Netherlands. He is an Oracle Certified Professional (OCP) and an Oracle Certified Master (OCM). He is also blind.
I became blind at age 40 and it took a while before I realized how important Braille actually is. Without it I would certainly have lost the notion of layout and it would almost be impossible to perform any serious programming work. I use Braille mostly on my laptop where I use a Braille display to feel what you can see, but I use it also in my daily life to identify any medicine I might have to take for example.
By the way, Louis Braille was the inventor of braille, a world-wide system used by blind and visually impaired people for reading and writing.
Blog added to OraNA.info.
Update: Joel Goodman also started a new blog.