ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
Ralpha Image Resizer - High-speed image batch conversion tool
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .