What are some common image viewing programs?

With the many different types of image formats available, there is certainly no shortage of image viewing programs as well. Below is a list of common image viewers for the Macintosh and Windows platforms.

Windows:

Company	Program Name	Price *	Image Editing	Notes
ACD Systems	ACDSee Photo Editor	$49	Yes	Photo editor that includes image touch-up features and effects; can be used for digital scrapbooking; other versions include ACDSee Pro and Photo Manager.
Adobe Systems	Photoshop	$599	Yes	The most popular image editing application in the world; has powerful image and color manipulation features.
Adobe Systems	Photoshop Elements	$89	Yes	Trimmed down version of Photoshop; still has advanced image editing capability.
Corel	Paint Shop Pro	$129	Yes	Advanced image editor from Corel; previously made by Jasc Software.
FastStone Soft	FastStone Image Viewer	Free	Yes	Supports batch converting and slideshows; includes advanced editing features.
Informative Graphics	Brava! Reader	Free	No	Views and prints TIFF, PDF and secure CSF files; also available as a Web browser plug-in.
IrfanView	IrfanView	Free	Yes	Supports many graphic, audio, and video formats; includes basic image editing capability.
Logipole	Konvertor	Free	Yes	Multimedia viewer/converter that supports conversion for over 1200 image, animation, audio, video and text formats.
Microsoft	Windows Picture and Fax Viewer	Free	No	Basic image viewer included with Windows XP.
XnView	XnView	Free	No	Supports the most formats of any image viewer.

Macintosh:

Company	Program Name	Price *	Image Editing	Notes
Adobe Systems	Photoshop	$599	Yes	The most popular image editing application in the world.
Adobe Systems	Photoshop Elements	$89	Yes	Trimmed down version of Photoshop; still has advanced image editing capability.
Apple Computer	iPhoto	$79 (with iLife)	Yes	Image organization program; can crop, rotate and perform basic color correction on images; bundled with new Macintosh computers.
Apple Computer	Preview	Free	Yes	Opens many different image formats including PDFs; bundled with Mac OS X.
Lemke Software	GraphicConverter X	$30	Yes	Imports over 190 graphic formats; exports 75 different formats.
Newera Software	Graphics Converter Pro	$30	Yes	Imports over 500 graphic formats and exports 140 formats; contains 60 image filters.
XnView	XnView	Free	No	Supports the most formats of any image viewer.

* Prices listed are estimated retail prices and may change.

Know of an image viewing program that should be listed here? Suggest a program.