Macroeconomics is focused on the movement and trends in the economy as a whole, while in microeconomics the focus is placed on factors that affect the decisions made by firms and individuals. The factors that are studied by macro and micro will often influence each other, such as the current level of unemployment in the economy as a whole will affect the supply of workers which an oil company can hire from, for example.
Key Concepts in Macroeconomics:
Aggregate Demand and Supply
Business Cycles
Consumption
Economic Growth and Productivity
Government Budgets, Debt, and Deficit
Foreign Exchange and Balance of Payment
Gross Domestic Product
Income Distribution
Inflation
Interest Rate
Investment
Exchange Rate
Macroeconomic Model
Macroeconomic Policy
Monetary and Fiscal Policy
Public Finance
Unemployment and Labor Market
Intermediate Macroeconomics
http://www.saylor.org/courses/econ202/
Interactive Macroeconomics
http://www.eurmacro.unisg.ch/tutor/interactivemacro.html
Macroeconomics
http://wps.aw.com/aw_williamson_macroecon_2/
Macroeconomics
https://www.khanacademy.org/economics-finance-domain/macroeconomics
Macroeconomics
http://bcs.worthpublishers.com/mankiw7/#t_517719____
Macroeconomics
http://www.ssb.no/en/forskning/makrookonomi
Macroeconomics I
http://ies.fsv.cuni.cz/cs/syllab/JEB114
Macroeconomics 101
http://economics.about.com/od/economics-basics/u/Macroeconomics-101.htm
Macroeconomics 102
http://education-portal.com/academy/course/macroeconomics-course.html
Macroeconomic Units
http://www.reffonomics.com/TRB/INPROGRESS/Macroeconomics
