Emphasis on "too little" in my comment leading up to your reply.

And it's not about what they are worth it's about what the solution is worth to the person buying. Almost always more than the developer/worker thinks their time is worth.

Keeping a relevant industry-related blog won't necessarily convince every single client, but it's one of those things that can swing someone's mind to committing to you when there's not a lot of other obvious signals.