Regular readers of this Blog of Writing are now asking, "What writing tip can Mike possibly add, since the DeHaan Services article explains why he wrote the DeHaan Fitness post"?
One Writing Tip Adapted from Writing about Tips for Running
Then I realized that I use different writing styles in DeHaan Fitness versus DeHaan Services, which differs again from my writing for science or promotional copy.
Here's the writing tip.
Include some promotional notes, when appropriate, and especially in your main blog(s). By explaining why (and how) I change my "voice" in different situations, I'm pitching my skills to potential clients.