Which RSS Feed Aggregator Does This?

[trigatch4]

So I'm subscribed to a TON of RSS Feeds and currently use NetVibes. However, I hate that every time I view my feeds it displays EVERYTHING, including articles I've already read.

Are there any aggregator sites that allow you, with 1 click, to mark all of the articles for that site as "read" so it will only display NEW articles next time you visit?

 

[flyernati]

You can do that in Google Reader. Just click on the link to show new items only.