HardRock.com
The official Hard Rock web site and online merch store. Surprisingly, this is a cool site with lots of interesting info... unfortunately, some of it is not always up-to-date or accurate, and important news (such as HRC closures) isn't given at all.

Kimono Rock Cafe: One Love, One World for HRC!
Kenji "Kimono" Miyamoto's excellent site from Japan featuring up-to-date Hard Rock info and a great pin listing. He also has a fantastic online travel photo journal that's worth a look!

Patrick's Hard Rock Cafe Pins
Not only a definitive site for excellent information on Hard Rock pins, Patrick also keeps tabs on Hard Rock news and events.

JB's Hard Rock World
J.B. doesn't update his site very often, but you can get a great deal of information on Hard Rock pin collecting here, as he is a serious collector.Pincollectors International Network

Uncle Dan Memorial Page
A memorial to one of the foremost authorities on Hard Rock pin collecting, Dan Schmider, who passed away on June 7, 2000. While I never met Uncle Dan personally, his enduring presence in the Hard Rock community has left a legacy through the many friends he made in his travels.

Hard Rock Japan Official Site
This site is entirely in Japanese (and has no English translation).

Hard Rock Singapore Official Site
All about the HRC Singapore (a terrific cafe with a great staff!).

Virgil LaFerney's Page
As a long-time patron of the Dallas Hard Rock, Virgil has some incredible information about the history and development of this classic cafe (click on the "Tour the Dallas Hard Rock" link), as well as numerous other tidbits and exclusive info from his Hard Rock travels.