The Bruins announced today that they have signed forward Joe Colborne (2008 first round pick), forward Jordan Caron (2009 first round pick), goaltender Michael Hutchinson (2008 third round pick), and defenseman Steven Kampfer (Anaheim's 2007 fourth round pick, whose right's were acquire in a trade on March 2nd) to entry-level contracts.
For more on Joe Colborne and Jordan Caron, check my recent interviews with them: