opsdo has two goals - to allow people to search many information sources which mainstream search engines do not cover well and to allow people to search groups of such sources -- e.g. RottenTomatoes, IMDb and Amazon.
free tutorials and collections from top universities and well-respected websites to train you in areas like web design, graphics and imaging, programming and coding, multimedia, connecting with your audience, and even learning freelancing and entrepreneur
In Activity Streams, verbs are their own objects, and the variety of actions that can be represented is limited only by the standard itself. Providers can also use verbs outside the standard, taking the chance that they'll eventually be incorporated, or that a downstream client could parse them anyway. Here's a list of the verbs incorporated in the Activity Streams standard so far:
AmphetaDesk is a free, cross platform, open-sourced, syndicated news aggregator - it obediently sits on your desktop, downloads the latest news that interests you, and displays them in a quick and easy to use (and customizable!) webpage.
Using RhNav - Rhizome Navigation I wrote a data aggregator for Technorati's API. The first result is a video which visualizes blog domains by analysing Technorati's Cosmos (the blogs which link to a particular URL). The video is a screencast of RhNav fetc
APML allows users to share their own personal Attention Profile in much the same way that OPML allows the exchange of reading lists between News Readers.