When Todd Lewis Mayover wants to dissect an idea or discuss a legal problem, he can’t buttonhole a colleague at the water cooler or walk across the hall to a senior lawyer’s office. That’s because he’s the sole in-house attorney at a Fort Lauderdale, Fla.-based medical device manufacturing company.

But he’s hardly alone. Every week, he shares ideas and exchanges advice with hundreds of attorneys, some as far away as Japan or South America. His secret: He started his own blog.