Punk Page recently started with a new project: Eventor. At Eventor you can find events, such as punk concerts, but also protests, media events etc. on one site. The datebase is open, so anyone who wants to can add an event. This way, the Eventor isn't only more complete than the event lists on band/label sites, it is also the place where non-commercial venues or organisations without enough money to promote their events, can publish them for the world to see.
Eventor is still beta. It works fine, only more features will be added later. You can find Eventor on Punk Page: www.punkpage.net.