h-feed is a simple, open format for publishing a stream or feed of h-entry posts, like complete posts on a home page or archive pages, or summaries or other brief lists of posts. h-feed is one of several open microformat draft standards suitable for embedding data in HTML.

sux0r 2.1.0 is a blogging package, an RSS aggregator, a bookmark repository, and a photo publishing platform with a focus on Naive Bayesian categorization and probabilistic content.

OpenID enabled (version 1.1); as both a consumer and a provider.

Organize and filter all the streams that matter to you or your team. Search across all your social networks to drill to information you want. Create streams that have search filters. Group streams within a community and invite members to contribute.

Tap into the intelligence of millions of online users active on the Social Web. PostRank™ delivers objective, real-time data and analysis on any topic, trend, or interest relevant to you or your business. Learn how you can use PostRank.

Spinn3r is a web service for indexing the blogosphere. We provide raw access to every blog post being published - in real time. We provide the data, and you can focus on building your application, mashup, or search engine. We find the weblogs and RSS, index their content, fetch the links, index their comments, etc.