If you base yourself on the social layers used by marketers to describe different targeting levels within a population, it is interesting to project this data into different sectors such as the Internet and Social Life.

The social stratums diagram
First up, the Internet market: There are 6,676,120,288 people in the world in 2008 of which 1,407,724,920 are connected, meaning roughly 21%. If we establish an average of active web-users, the percentage drops importantly, and only 140 million users who regularly connect are left, so 2%.
It’s with these 2% of the population that Google, Amazon, eBay and the others are valued at more on the market than certain large International groups that have been active for more than a century. Therefore, it’s easy to imagine the Internet’s huge potential, and it’s doubtlessly what gives value to the stock markets.
Even more interesting is the way that the population is spread over the social stratums of the diagram above. Probably most or even the majority is situated in the highest levels such as Achievers, Emulators and Integrateds. By analyzing this data, we observe that the Internet is still an emerging niche market despite its success.
In the sphere of private life, it is instructive to position oneself in this diagram. What level do we belong to? And from what positioning, while remaining the most objective possible? What will my social values and style of life be? It’s following this basic model that social networks are built, by affinity of taste and leisure, but of social belonging also. The diagram below shows the same logic, 1% of the population creates value, 10% participates to increase this value, and 100% profit from it, or can profit from it.

Source : Bradley Horowitz
In the sphere of loving relationships, it happens very often that the loved one comes from a distant stratum from one’s own. For example, an Integrated meets a Sustainer, as such meeting possibilities are 100 times superior then in the Integrateds’ own social layer. These cases are numerous, and cause important damage leading to divorce and relational unhappiness.
The "dopamine" hormone is the main culprit for these uncontrollable effects. I recommend you read the book, the website, and listen to Helen Fischer’s conference at TED 2006 to understand ancestral mechanisms which define our amorous relationships for better or worse.
Enjoy :