http://www.theatlanticwire.com/technolo ... fic/49967/
By one study's measure, slightly more than half of all the Internet's traffic comes from computers not being used by fleshy humans that might actually purchase products. That's according to study released today by Incapsula, an Internet security firm, begging the question: What exactly does Internet traffic from a "non-human" look like? Incapsula is here to explain: "hackers, spambots, scrapers and spies of sorts collecting proprietary business information and customer data from unsuspecting websites."
The traffic breakdown:
5% hacking software looking for site vulnerabilities to gather credit card info or use your server as a DDoS bot
5% scrapers copying content from sites to post it on their own
19% competitive spies
20% search engines (Google, Bing, etc)
49% actual people
So, actual people reading this, I'd like to thank you!