Travelog lets you view and mark anywhere on the world map. You can capture detailed logs and add photos of your journeys. It is an ideal tool to document your travels.
(commercial) for cataloging and retrieving files. Tri-CATALOG has specific "Images" features: it creates thumbnail views for all picture files (PICT, TIFF, JPEG, EPS, GIF, PNTG and BMP) and has specific search and display features as well
TuneQuiz is a small app that tests your musical knowledge using iTunes.
(commercial) UnCoverIt 2 creates covers for your disks, files, and folders, for your iTunes playlists and your iPhoto photo albums. UnCoverIt comes bundled with templates for the most widely used media types as CD-ROM and Zip disk. Additionally UnCoverIt lets you customize the templates or completely design your own templates from scratch.
UPCToISBN is a small application that pretty much does what its namesake says: converts the UPC (Universal Product Code) from a book into it's equivalent ISBN (International Standard Book Number).
VokabelTrainer is a little tool to help you learning your vocabularies. It supports saving and loading vocabulary lists to files which is useful for sending or transporting them to another computer. VokabelTrainer is available in German and English.
Weight Tracker helps adults (and youths) track their weight and keep a log of sugar readings, diet, exercise, etc.