Sites that are related to travel that didn't fit another category:

Expatistan:  https://www.expatistan.com/cost-of-living lets you compare the costs of living in different places. 

Nomad List:  https://nomadlist.com/ helps you decide where to go based on a number of filters.

The US State Department’s Map of Travel Advisories is at https://travelmaps.state.gov/TSGMap/.