If e-voting is currently being used, what type(s) of technology used?

EISA Technical Assessment Team and Election Observer Mission Report (no 44): The 23 August 2011Referendum, The 11 October 2011 Presidential, Senate and House of Representatives, The 9 November 2011 Presidential Run-Off Elections in LIBERIA:  http://eisa.org.za/PDF/lib2011eom.pdf