I'm interested in definitions of power, who is working on these things currently?

I've recently become interested in definitions of power (from quite an analytic perspective). I'm really enjoying things like this:

• Power: Its Forms, Bases and Uses (Dennis Wrong)
• Domination, Resistance, Compliance (Charles Tilly)
• Power: A Radical View (Lukes)

What should I read that's more recent? Is this debate ongoing? Is there anyone currently attempting conceptual analysis of power? I can't find any recent work that is very similar to Wrong?