digiKam - Professional Photo Management with the Power of Open Source
BucketList.net - Bucket list ideas, advice and support
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Life Listr - ***AS FEATURED BY APPLE***
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Bucketlist.org - Log and catalog all the stuff you want to accomplish before you expire.