Hover Zoom - Enlarge thumbnails on mouse over.
Feedbro - Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source. Feature highlights:
Image Max URL - Help find larger or original versions of images, including a customizable image popup feature
Feedly - The content you need to accelerate your research, marketing, and sales.
Hover Zoom+ - Google Chrome extension for zooming images on mouse hover - extesy/hoverzoom
Inoreader - Dive into your favorite content. The content reader for power users who want to save time.