To understand what kind of problems we would encounter in a project of this type we referred to a source outside the computer science domain. There are many sources covering voting in general, but only a few that treat the subject of electronic voting. The book we have found useful is Elections in Cyberspace: Toward a New Era in American Politics, The Aspen Institute (ISBN: 0-89843-202-2), Washington DC, 1996.
Optical Character Recognition Software (not available at this time)
SANE
Project - Scanning Software
Sequoia Voting Systems - AVC Edge DRE
Sequoia Voting Systems - Voter Verifiable Record Printers
HTTP: The Definitive Guide - O'Reilly Books
Linux Socket Programming - InformIT