That's interesting because I block all publicly facing ips from DigitalOcean from every server I own. the amount of spam and hackers probing from there ips is beyond a joke. Anyway thanks for your input.
Current revenue increase is because of YouTube's contribution that's finally happening. YouTube had been time bomb in terms of revenue explosion that has been ticking for a long while. YouTube probably generates more views then most popular TV channels but there were hardly any ads until recently. My guess is that YouTube might come close to revenues eventually to web search itself.