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I recommend bookmarking and regularly visiting these sites:
Bespoke
The Big Picture
Thomas Bulkowski
Calculated Risk
Tony Caldaro
Citigroup Economic Surprise Index
Cobra Chart Book
Crossing Wall Street
Day Trader Boot Camp
Carl Futia
McClellan
McMillan Option Strategist
NAAIM Weekly Survey
PsychTrader
Quantifiable Edges
Schaeffer's
SentimenTrader
Short Side of Long
Stock Traders Almanac
Vix and More
Ed Yardeni
If you are interested in learning about the NYSE $tick, go here