Visions of Venice Trailer for upcoming Assassin's Creed II, due out this holiday season on 11/17/2009 for PC, PS3 and Xbox 360

Revenge with Ezio.
Available November 17, 2009 for PS3, Xbox 360, and a later release for the PC

Preview new tools for the Assassins arsenal.
Assassins Creed 2 will be released on November 20, 2009 for the Xbox 360 and PS3

Pick and choose your battles. Assassin's Creed II Developer Diary#4

A look at Factions in upcoming Assassin's Creed II

Live action filmic prequel narrative of the events of Assassin's Creed made by the team that made 300 and Sin City

Go on an incredible journey through Assassin's Creed II with developers.
Due out November 17th for PS3 and Xbox 360, later for PC

Assassin's Creed Brotherhood E3 Trailer, now with multiplayer co-op.