For bookmarking / Feeds

Aplication Online:

Alesti Feed Reader

Web 2.0 RSS reader

Attensa Online

is a free AJAX RSS reader that works like a dedicated RSS reader application.

BeanRocket

Social aggregator (R)

BlogLines

Folder style aggregator (R)

Editaste

Aggregator, also enables creating feeds comprised of arbitrary items (free)

FeedFeeds

RSS/Atom aggregator that also features FeedTV

AlmondRocks

Simple aggregator

Blox0r

Simple news aggregator

ClickBio

ClickBio Biological News Aggregator

Chrysanth NETime Channel

Online RSS/Atom aggregator and RSS/Atom preview (R)

FeedBucket

RSS/Atom aggregator with River-of-News or individual feeds

FeedLounge FeedReader.net

Commercial aggregator (N) Your personal web XML/RSS news reader

FeedShow.com

RSS feeds reader / includes RSS monetization

FeedZilla

Dutch online RSS aggregator (N)

FlipSkipper

River-of-news style web based aggregator

Freepress

An political-news weblog aggregator with a set list of feeds, grouped by political party

Google Reader

Google’s Atom/RSS aggregator (R)

Grabline.com

India News Aggregator (English and Hindi). Aggregates Deals as well.

Greensboro101.com

Community aggregator for Greensboro, North Carolina (S)

HyperSuper

Personalized news aggregator

Inform

Advanced news aggregator (R)

Kinja

Kinja, the weblog guide (R)

metaRSS

News aggregator and meta RSS producer (R)

monitor

Greek blog aggregator.

MyNewsbot

News aggregator with a twist