I think that it is mentioned fairly frequently...by the way, ISPs advertise speed in kiloBITS per second. There are 8 kiloBITS in one kiloBYTE. So, if your ISP advertises 125 kilobits/s, that equals about 15 kilobytes/s.
Doesn't seem so bad now, eh?
Dan
P.S. Have you tried doing a speed test for your connection?
Speedtest.net - The Global Broadband Speed Test