Group items tagged

Hashtags are a community-driven convention for adding additional context and metadata to your tweets. They're like tags on Flickr, only added inline to your posts. Hashtags can be created by anyone simply by prefixing a word with a hash symbol: #myhashtag.

Tagalus lets users define tags so that others can understand what they're talking about. Other users can vote on definitions and decide which best describes the given tag.