Jimpl - Free online photo metadata and EXIF data viewer. Uncover hidden data of your pictures. Upload a photo to find where, when, and how it was taken.
Screenshot Tracker - Capture and keep track of full-sized web page screenshots
Pic2Map - Can't remember the location where you took that picture on your vacation? Upload your photo and find out where it was taken.
Webshot - Free and Open Source screenshot website service
Metadata++ - Homepage of Metadata++, free, intuitive and powerful EXIF, IPTC, XMP, ICC, GPS viewer/editor.
Screenstab - A tool to turn ordinary screenshots into beautiful image assets