Rather than create topical group blogs, people will simply coalesce around the same (or very similar) tags, which will define a topicspace, a tagspace. Today, we don't actually do much with those spaces: for example, all the posts tagged "PR" at Technorati don't amount to a real destination, like a group blog does, but is just a luanching pad for people to go elsewhere. However, if someone -- like Corante, perhaps -- were to aggregate the writings of people -- like the individual contributors to Many-2-Many, and let's say another leading 100 writers on things related to the human use of the Web -- tagspaces would emerge. "Web 2.0" would explode, for example. A company like Corante could direct some editorial digest on what the most interesting pieces are for any day, and that tagspace could become a real meeting point for people interested in the topic.See LibraryClips for more thoughts on boosting the power, functions and use of tags:
Instead of pinging Technorati with a ThreadID system or a unique Tagback you could set up a “blog for threads” that you can ping, or why not just set up a service similar to Topic Exchange, but it would be Conversation Exchange.This is what will take tags & push them over the top. When they're statements of a stake in a community, rather than simple labels for search, then tags will be fulfilling a whole new function.
You could have your own account space, like in del.icio.us, with an item list of all the conversations you have initiated, and also a list of conversations you have contributed in…maybe you could add tags to these linear conversations (or distributed gatherings) so you could organise, share and browse the portal by a conversation topic (a conversonomy even…he!..he!)
…this idea is simply leveraging on the Topic Exchange system by allowing a user space, and folksonomy features.