Both Google image and TinEye searches allow users to upload images and will find websites which have that image.  You can also describe the image and it will find similar ones.

To Finding the Exif Data - which is the embedded meta data stored in the image when taken on a digital device (for more information click here).

Download this program:

Jeffreys Exif Viewer
Or use these websites:

free-ocr.com    geosetter.de    metapicz.com    photo-freeware.net    photome.de

photo-freeware.net    photome.de    sno.phy.queensu.ca/~phil/exiftool/    tawbaware.com

Video and screen Capture
pixelmetrics.com - Video screen capture (30 day free trial)
screenpresso.com - Video screen capture  

sourceforge.net - Embed/hide a file in a picture

wisdom-soft.com - Video screen capture