Twubs is a new initiative that revolves around hasthags. More precisely, it revolves around meta-hashtags.
A meta-hashtag is a classification system whereby users can attach a purpose to any given tag. For example, the hashtag #rr refers to restaurants, the hashtag #re alludes to events and so forth.
The idea behind this project is to give everybody a chance to find disparate social media content in the same location. Users can meet up online and create a community of favorite places, events and movies. On the other hand, if you are interested in a topic which is not already included you can have the corresponding twub created more or less instantly, so that you won’t be prevented from interacting with others.
Twubs aggregates content both from Twitter and Twitpic automatically, and content from popular sites like YouTube and Vimeo is likewise taken into consideration. Twub then creates groups of users bound by content and aggregates everything together so that it can be found by others. All in all, a convenient way of interacting with like-minded individuals on the Web, as the matching up itself is handled automatically and you are able to start chattering right away.
Twubs.com In Their Own Words
“Hashtags made useful.”
Why Twubs.com It Might Be A Killer
Such a solution lets anybody come across disparate social media content in the same spot and access it effortlessly.
Some Questions About Twubs.com
Are there related sites on the Net, or is this one setting a first? 
