Tiny Tiny RSS.

Google Reader was a web-based aggregator, capable of reading Atom and RSS feeds online or offline.

birdreader - Home-made, Open-source Google Reader replacement powered by Node.js and CouchDB (Cloudant).

Automatically share/publish your RSS feeds on social networks such as Twitter, Facebook Account, Facebook Pages, LinkedIn, Tumblr, Medium, and more...

Moonmoon is a web based aggregator similar to Planet . It can be used to blend articles from different blogs with same interests into a single page.

FeedDemon is a popular RSS reader for Windows, with an easy-to-use interface that makes it a snap to stay informed with the latest news and information.

Blogtrottr delivers updates from all of your favourite news, feeds, and blogs directly to your email inbox, giving you the flexibility to stay updated whilst on the go.

The best iGoogle alternative. Chris Pirillo calls Protopage "The best designed".

FreshRSS is a free, self-hosted RSS aggregator. It is quite lightweight, fast (it can manage +100k articles without complaining) and powerful (e.g. shortcuts, filters, responsive design, multi-views, multi-themes, multi-users, statistics, provides a Google Reader API, etc.)

NewsBlur is a personal news reader that brings people together to talk about the world. It shows you the original site and allows you to read stories directly off the site while keeping track of what you read. It also filters and highlights stories you like and dislike.

Organize and read content from RSS feeds into a magazine-like experience, simple sharing options, and seamless access across all devices.

Aggregate RSS, newsletters, and social feeds with advanced filtering, real-time cross-device syncing, customizable reading views, and ad-free experience.

QuiteRSS is a open-source cross-platform RSS/Atom news feeds reader written on Qt/C++