This is probably the weakest cooler roundup that Tom's Hardware has ever done, although their last one
was pretty weak, too. Amazing that they can compare 89 heatsinks for Socket A and yet not include any manufactured by Alpha Novatech, Thermalright or Zalman, the three brands which are probably discussed most often here on SPCR. Why samples from these companies weren't included is anyone's guess. The article even says:
It remains to be seen if the manufacturers will direct their future development efforts more strongly in the direction of quiet and, of course, powerful cooling solutions.
which is laughable, since the Thermalright SLK-800 is considered one of the most powerful Socket A coolers available, and the Zalman CNPS-6000Cu is considered one of the quietest. They're building them, Tom's Hardware, you just aren't reviewing them.