Netscape bigger than Digg?

Just looked at this site which reports that Quantcast says Netscape has more users than digg… I think that might be true. Netscape might have more users while digg have more visits (i.e. same users coming back more often). I wish we have accurate reporting on the web.

Compete says 22M visitors vs. 4.8M and Netscape, while quantcast says 8m vs. 7.2M.

Can anyone get to the bottom of these stats!??!?!