Useful tools :

EDSY :
Elite Dangerous Shipyard

CMDR Victic's Tools :
Trading and mining tools

eddb :
Elite Dangerous Database

EDRefCard :
Binding cheat sheet generator

Inara :
News, Radio, Shipyards, Market, etc.

Fuel Rats :
An helpful hand when running on fumes.

From Rags to Riches :

Mine Low Temperature Diamonds in Borann A2 ring B and sell them 1 million a pop.
Ship Progression : Adder → ASP Explorer → Python.