PiratePad alternative with HTML support?

I like www.piratepad.net a lot. It helps texts evolve having the easy ability of going back to an exact point in the past, and comparing.

But I now have pages to review that have links and all that.

PiratePad doesn’t support HTML so the links, formatting etc are gone.

Do you know of any alternative that can handle formatted text and HTML links, but is still easy to use?

Thanks!