RSS Bandit is a full featured RSS feed aggregator that may also be used as a desktop client for Google Reader.

Sync Google Reader subscriptions with RSS Bandit

This is especially useful in situations when you are travelling to a place that has no web access simply download all the feeds from Google Reader to RSS Bandit and read them offline. All actions like "marking items as read" in RSS Bandit will get synchronized with Google Reader automatically later.

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