By now you’ve certainly read or heard about the incredible statistics that surround social networks. Social networks and blogs are the 4th most popular online activities, and 67% of global users visit member communities daily, and 10% of all time spent on the internet is on social media sites. Another interesting fact is that 80% of companies use, (or are planning to use), LinkedIn as their primary tool to find employees this year and into 2010.

Impressive stats for sure. But what about social networking’s older brother, the venerable email? What are some fun statistics that you can throw around at your next cocktail party? Well, how about:

If email was a country, its 1.4 billion users would make it the largest in the world. Bigger than China, bigger than the populations of the USA and European Union combined.

247 billion emails are sent each day. That’s one email every 0.00000035 seconds.

In the time it takes you to read this sentence, some 20 million emails entered cyberspace.

Every second, the world’s email users produce messages equivalent in size to over 16,000 copies of the Complete Works of Shakespeare (assuming a 30KB average email size).

13.4 billion: the number of direct marketing dollars forecast to go on email in the US in 2009.

$583 billion: the return from that investment if you use standard figures on email marketing ROI. That’s four times the market value of Microsoft.

181: the number of marketing emails it would take to produce enough revenue to buy one share in Microsoft.

83,689,738,832,367: the number of marketing emails it would take to produce enough revenue to pay the US National Debt.