Links to charts worldwide, real world or for flight simulation. Increasing number of VFR charts as well.
Aiming to list free charts whenever possible - and optionally links to paid services if free is not available.
To find new links Google the country name followed by these search terms: "aip" (Aeronautical Information Package) or "ais" (Aeronautical Information Service) or "vatsim", and sometimes you might be lucky with "charts" as well. You can also check Eurocontrol AIS online collection, eletronic AIPs by country, or here or here or here. When you find new links I surely hope you will submit them here. :)
Credit goes to VATSIM (specifically Neil Dewson-Smyth and Chad Black) for the original list of links from many years ago. Many are dead, so please help getting them up-to-date.