acrobat reader 6

Internet search client and a news feed reader that concentrates on finding.

Karoro is a light-weight, streamlined RSS and Atom feed reader

RSS feeds and Web news reader/aggregator and news ticker in one program

Awasu is a state-of-the-art feed reader for both casual personal & professional

Zipfocus is a small, portable, zip reader/viewer/extractor.

A free portable PDF viewer/reader application for Windows, Linux

pytagger is a ID3 tag reader and writer implemented purely in Python.

News reader program which simplifies searches in RSS and Usenet archives.

Bitscast is an RSS reader/database/aggregator and a podcast receiver/player

JMReader is a perfect book reader with true book interface.