One of the themes here at Neuroscience 2011 is correlative microscopy--the integration of electron and light microscopy--evidenced by yesterday's announcement that FEI Company, developer of electron and ion-beam microscopes, is acquiring Till Photonics from Toptica. The announcement came about one hour after the conclusion of a press conference by Carl Zeiss Microscopy--the company that has resulted from the merger of Carl Zeiss MicroImaging (which focused on light microscopy) with Carl Zeiss NTS (nanotechnology systems, focused on electron and charged-particle microscopy).