comscore panel quality

I’ve follow comscore for many years. For those of you who don’t know comscore, they are a publicly-trade company that provides measurement of the Web. They function much like Nielsen in TV or arbitron in radio have for decades. There has been debate for a long time about the use of panels for online measurement. I hear it from investors about 75% of the time this stock/company is discussed. This afternoon I received a report from comscore on this issue. I think it’s a good overview and argument of the issue. If you’re interested in getting the report, email me (markmay@gmail.com).