Q:

Choosing country projections

Anyone know of a good reference (either pay or open-web) that details recommended country projections?

A:

Try the EPSG Geodetic Parameter Dataset which is more up-to-date and where epsg.io got its information. 
Admittedly, it doesn't always have projected coordinate reference systems that are suitable for an entire country--but only because no one's told us what is used for a map of the entire country!
Spatial Reference allows user-contributions so might have more information. 
Disclosure: I'm on the subcommittee that maintains it.

A:

Try epsg.io.  You can type in the name of a country or even search by CRS.  And it is free!  Type in the country or region you need a projection for and it will return the recommended coordinate system.

A:

There is also a source called Coordinate Reference Systems (CRS) of European CountriesURL: http://www.crs-geo.eu/crs-national.htm
It contains

descriptions of Coordinate Reference Systems
transformation parameters to pan-European CRS ETRS89, EVRF2000 and EVRF2007
verification data for transformation
online-transformation of single points for position and height from national CRS of a country to pan-European CRS ETRS89, EVRF2000 and EVRF2007 for test and verification purposes

To get the information select a country in the list or click on the corresponding red dot in the map

