Constantin Popescu

If I remember well, people from Chrome were caught buying links.Google is huge and has big divisions who are relatively independent. Im sure those people from Maps don't know anything about new SEO updates. Just like those outside Youtube are not aware of all YT features. I know guy who works for mobile department, he has never heard of Matt Cutts.

For now social media...

Sure thing, Yahoo is big and got better. But I dont think they overtook Google. As for comScore traffic data for Y!, their data is correct. Go to yahoo.com, open devtools/firebug, scour the network tab for "b.scorecardresearch.com", that's comscore tracking. So their numbers are as accurate as can be. But they dont have same data for Google and are just estimating right there.

Hey Sean, thanks for AMA.

What tools do you use for growth hacking?

I linked wrong url, I appoligize. It should be: http://www.thesocialmediahat.com/blog/was-content-curation-born-french-hospital-95-years-ago-08142013 .

Can someone fix this?

I dont find comScore data credible. Same is for Compete, Quantcast, Alexa...