tagsy is a social bookmarks and feed management service, allowing you to save, categorize and browse information based on its popularity and relevance. It was born out of our frustration with fragmentation of content between various blog feeds, feed aggregators, social bookmark managers and other content aggregating services.
tagsy's main objective is to centralize content and apply a universal tag-based hierarchy. The best way to do so is to integrate with other tag-enabled services such as Flickr and del.icio.us, adding up a powerful Firefox extension to make it all easy to manage.
It's not ready yet, but you can opt in to be notified about our developments. The email address will not be shared with any other party, and there will be a maximum of one email per month.