Could check out The Pirate Queen, by Susan Ronald. It's about the court of Elizabeth and the "adventurers" that she surrounded herself with. To the French and Spanish, they were Pirates, but to the English they were "privateers" or gentleman adventurers.

Edit: saw you're also looking for stuff on after the Elizabethan era.

Empire of Blue Water, by Stephan Talty. is a great biography of Henry Morgan. Technically he was a Privateer, and he would have been pissed if you called him a Pirate. But for everyone but the English, he was The Pirate.

Under the Black Flag, by David Cordingly is a great overview of piracy up to and through the Golden Age of piracy. Dispells some of the myths, and tells the real stories behind some of the most famous Pirates.