There are many factors affecting writing ability, but an important factor may be how directly a preferred learning modality is connected up to the language center of the brain. I don't know which modality I prefer to use while learning: visual, auditory, or kinesthetic. My left eye is dominant, my left ear is dominant, so it seems the information I hear and see is directly connected to the right side of my brain. I also can learn without moving. I can understand information using my hearing and sight, but I generally won't remember what I learn until I tell it to someone else - I am a verbal learner. I suspect this is why I love teaching and making presentations; I think best while talking. Perhaps, in order to blog, I will have to read out loud as I write.
What is your dominant eye and ear? Are you a whole-to-part processor, or a part-to-whole processor? To find out more check out Carla Hannaford's book .
