PhD, what do you know

This is what you know, when you really know what you are talking about.
Source: 1, 2

Religion and GDP/capita

Interesting correlation between religion and GDP/capita.

Source: Religious Outlier

Self actualization

The questions to self actualisation (what, why, how, where, when, who, ...):
If someone don't do it for you: http://www.justspotted.com/map/
You can do it yourself: https://www.google.com/latitude

A good way to find new sites, similar to your own.

Source: ...