Hacker News Reader

Traffic to HN was around 30,000 uniques per day at the end of April (source: http://ycombinator.com/newsnews.html)

I have a site with 20.000 uniques per day and the 3 month average rank in alexa is 7,771 so it seems pretty accurate.

Before alexa changed the ranking system it used to be on the top 1000.