SageThumbs - SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats...
Marvel (Comics) API - Create awesome stuff with the world's greatest comic API
MysticThumbs - MysticThumbs generates thumbnails of many image types not natively supported by Windows.
DC Universe - The DC Comics streaming service w/ original content
Icaros - Icaros is a collection of lightweight, high quality, Windows Shell Extensions
Comixology Unlimited - Netflix for comics and graphics novels by Amazon