[gabemart]

You can use Alexa rank and other public metrics as a crude first-approximation of how many visitors a site gets. In my experience it's usually accurate to within an order of magnitude for sites that aren't incredibly big or incredibly small.

Here are the results for the first 10 domains on the list:

    domain                 daily visitors
    ------------------------------------
    101bestwebsites        5,000
    aboutyourstartup       3,500
    alltopstartups         11,000
    alternativeto          1,750,000
    angel.co               500,000
    appappeal              15,000
    appmit                 400
    apps400                5,000
    appuseful              3,000
    appvita                6,000