
The 18-year-old Hamill was selected eighth overall by the Bruins in the 2007 NHL Entry Draft. He has spent the past four seasons with the Everett Silvertips of the Western Hockey League, where he scored a franchise-record 187 points (61 goals, 126 assists) in 183 games.
Also signed on Wednesday were defenseman Sean Curry and goaltender Jordan Sigalet, two players for the Bruins' American Hockey League affiliate in Providence.