[meteorite-list] What Your Meteorite Pictures Might Tell About You

[Paul H.]

People, who take pictures, might not realize that 
smartphones, digital cameras often record all 
sorts data about how, when, and even where in
some cases a picture was taken. Many cameras 
record this information as meta-data that is 
embedded in image files in a digital format called 
"Exif Metadata" as discussed in:

Tools for Managing EXIF Data of your Images
http://www.labnol.org/software/exif-data-editors/14210/

Exchangeable image file format
http://en.wikipedia.org/wiki/Exchangeable_image_file_format

Also, the EXIF Data might record when and how it
was modified depending on the software used.

If you want to see want image data is embedded
in yours or another person's picture, there are various
Exif Viewers, both online and available as software
that can be used to extract this data. 

Even if you are not interested in this data, there are 
people and companies that are examining the
pictures that you and other people posted to the 
Internet using it for their own purposes. If you have 
a smart phone or camera with a built-in GPS, it is 
scary what people can find out you and where you 
have been.

Some online Exif Viewers are:

1. ExifViewer.org - http://www.exifviewer.org/

2. Jeffrey's Exif viewer - http://regex.info/exif.cgi

Yours,

Paul H.