"If your downloads feel a little pokey lately, it might be time
to test your broadband connection speed to make sure you're getting
the performance you're expecting (not to mention paying for).
"There are places to do this all over the Web, but one of our
favorites is speedtest.net. The site uses cool-looking graphics
(you'll need the Flash plugin) and will automatically locate the
closest test server to reliably report your connection's latency,
download, and upload speeds.
"2) Test VoIP Performance If you're thinking of ditching your
landline phone for a VoIP service, you'll want to make sure your
broadband connection is up to the task. But raw download and upload
performance isn't necessarily indicative of a connection's ability
to reliably handle VoIP traffic.
"The Broadband VoIP test at
www.whichvoip.com/voip/speed_test/ppspeed.html simulates a VoIP
call to measure Quality of Service (QoS) parameters like jitter and
packet loss, and it will provide an estimated MOS (Mean Opinion
Score) to tell you how good the quality of your voice calls is
likely to be."