One of the primary economics time series data sources for the US and increasingly international data is the Federal Reserve Economic Database (FRED) from the St. Louis Federal Reserve.
Links to FRED dashboards:
Overview of the US Macroeconomy
Other FRED and Federal Reserve Databases:
GeoFred provides spatial mapping of US and International Data
AlFRED provides archival (unrevised) data for some US variables
Real-Time Data Research Center -- Philadelphia Fed
The US Bureau of Labor Statistics (BLS) generates data on US labor market and prices
The US Bureau of Economic Activity generates data on US GDP and international transactions:
Total Factor Productivity - San Francisco Fed
Publications and News Sources
Economic Synopses - St. Louis Fed
Page One Economics - St. Louis Fed
Other data sources: