References
http://www.wisegeek.com/what-is-biometric-face-recognition.htm
http://electronics.howstuffworks.com/gadgets/high-tech-gadgets/facial-recognition3.htm
http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci211666,00.html
http://www.facerecognitionsolution.com/visitor-management-solutions.html
http://www.facerecognitionsolution.com/access-control-system.html
http://www.biometricnewsportal.com/fingerprint_biometrics.asp
http://www.querycat.com/question/5fe040f61817140ca19f7826e846fd4f
http://www.m2sys.com/airport_fast_check-in_fingerprint_technology.htm
http://www.howtodothings.com/business/how-to-make-use-of-fingerprints
http://www.buzzle.com/articles/police-find-new-uses-for-fingerprint-scanning-technology.html
http://www.authenticationworld.com/Authentication-Biometrics/IrisAuthentication.html
http://www.schneier.com/blog/archives/2007/04/keystroke_biome.html
http://www.findbiometrics.com/signature-keystroke/#SIGNATURE
http://www.globalsecurity.org/security/systems/biometrics-voice.htm
