AMHERST, Mass. - Jeff Taylor, chief executive officer of Monster.com, will speak at the undergraduate Commencement of the University of Massachusetts, Sun., May 27 at 10 a.m. in Warren P. McGuirk Alumni Stadium. Taylor will receive a bachelor’s degree from University Without Walls during the ceremonies. Keynote speaker at the event is Emmy Award-winning actor Kelsey Grammer. Finance major Karen Borsetti, of Beverly, is student speaker.