http://www.modem-help.freeserve.co.uk/modem.html
http://www.modemhelp.com/
Line Test
MSN Modem Speed Test
ZDNET Modem Speed Test
~leslie Modem Speed Test
ezlink Modem Speed Test
http://56k.com/cons/
http://www.56k.com/trouble/connect.shtml
http://www.buckeyeweb.net/Tech_Support/modem.htm
http://www.thebee.com/bweb/iinfo66.htm
http://www.808hi.com/56K/
http://www.808hi.com/56K/links.htm
http://consumer.3com.com/modem/documents/10530.htm
http://www.3com.com/56k/need4_56k/connectnow.html
http://consumer.3com.com/modem/documents/14115.htm