Meta Tags Panel
Browser window which shows HTML page metatags (description, keywords and other not visible page info) in convenient and beautiful colorized form. Add it to your bookmarks toolbar. Works with any browser with JavaScript. A must for any Web designer!
http://ex-code.com/binaries/metatags-mozilla.zip - 16Kb - Download - Screenshot

Image Info Toolkit
Image Info Toolkit is an easy to learn, but powerful application that handles text information hidden within Jpeg and TIFF image files. It does this by using the IPTC-information fields that are embedded in the header portion of your image file. This feature (found as the File>> File info in... In addition to reading and editing image file information Image Info Toolkit offers the possibility to create and edit your own hierarchical keyword catalog in four mayor languages and exchange whole catalogs or parts of it with other Image Info Toolkit users.
http://www.pictures.de/software/iit/download/IIT-2.0-e-win-Install.exe - 16Mb - Download - Screenshot

Image.InfoCards Viewer
Use IIC Viewer to access all types of information and meta-data previously embedded in pictures using Image. InfoCards (IIC) technology. Image. InfoCards is 100% transparent to applications. Image data is not touched (100% Quality). You can embed memos, data cards, copyright information and even... InfoCards (IIC for short), the name of this technology, will let users package together two valuable items: images and their related info. ... The information is organized in user-friendly packets called "Cards", which can then be embedded on the popular JPEG, GIF and PNG image formats.
http://www.imageinfocards.com/download/iic_viewer.exe - 434Kb - Download - Screenshot