Online-tools for debunking hoaxes and fakes
http://gizmodo.com/six-easy-ways-to-tell-if-that-viral-story-is-a-hoax-1732026737
Oh, look! It's ISIS-sympathizers hiding among refugees and clashing with german police! Breaking News!
Actually, the photo is from 2012.
* Reverse Image Search: For example via "GoogleImages" or "TinEye".
https://www.google.com/imghp
http://tineye.com/
* Amnesty International's "YouTube DataViewer" extracts the Youtube-thumbnails of a video and queries 1. Does Youtube contain other videos with the same thumbnail? 2. Reverse image search which websites are linking to that video.
http://www.amnestyusa.org/citizenevidence/
* Metadata: Photos and videos shot by smartphones and digital cameras have metadata attached that details things like what kind of camera was used, time, date location...
In such situations, EXIF readers such as Jeffreys Exif Viewer allow you upload or enter the URL of an image and view its metadata.
http://regex.info/exif.cgi
* Image was probably photoshopped? Error-level analysis can determine whether different parts of an image were shot with different quality.
http://fotoforensics.com/
* Does the weather in the background fit time, date and location?
http://www.wolframalpha.com/examples/WeatherAndMeteorology.html
* Does the location even look like this?
http://www.google.com/maps/streetview/
https://www.google.co.uk/intl/en_uk/earth/
http://wikimapia.org/#lang=en&lat=49.446700&lon=7.760900&z=12&m=b