When making a plan, information is of great importance.
Before go, I Google. When arrive, I validate. After return, I confirm.
Then I'm sure which websites are very helpful.
Supposed clarification:
- worldwide
- country or region
- specific topic
each website should be followded by a short introduction.
For example:
[worldwide]
http://www.virtualtourist.com/ a website sorted by continent and country, to get the oveview of destination, and local pictures.