This page aggregates articles about the economy (from both a macro and micro angles), which may provide important information when investing:

Articles / news:

February 15th, 2017: Wall Street responds extremely well to Trump’s promise to simplify the tax code and reduce taxes.  
February 13th, 2017: Apple’s stock hits record ($133.29).
December 27th, 2016: Amazon ships more than 1 billion holiday gifts. Amazon’s Echo Dot (Affiliate link) sales were nine times higher than last season.
December 7th, 2016:Amazon announces its first commercial drone delivery, in Cambridgeshire, England. 
December 4th, 2016: Italian Referendum comes out negative. Euro hits its lowest level since March 2015 but recovers quickly. Markets go almost mute over the referendum. [1][2][3][4]
November 22nd, 2016: How The Economic Machine Works by Ray Dalio
November 18th, 2016 :Gold price hits $1206.14/oz (see this source and this source). Markets are reacting well to Trump’s election.
November 9th, 2016 :Mining stocks at a good price.
November 8th, 2016 : Elections in the US.
November 8th, 2016 : Delinquency Rate on Portuguese mortgages decreases to 9.05%.

I am also keeping an eye on the following future events:

January 20th, 2017 : Donald Trump takes office.
March, 2017 :The UK starts the process to leave the EU.
April-May, 2017 : Elections in France. 
May, 2017 :Elections in Iran. 
Spring, 2017 :Referendum in Turkey to give absolute power to Erdogan.
Fall, 2017 : Chinese Communist Party general assembly.
September-October, 2017 : Elections in Germany.

During 2017, the US federal reserve may also increase tax rates.