A funny name, but yet another product bookmarking service. The Shoposphere itself is a search service where a user can search into the picklists created by users of Yahoo. A picklist is a list of products selected by a user. A user can add a comment to a product, but no tags. It is easy to copy (reblog) a product to your own list. The nice thing about this is the fact that it can be used for any product-url in the Yahoo comparison shopping service.
The user can create multiple lists (categories), such as the wish list, the owned list, etc. Any list can be published to other Yahoo users and thus turning it into a pick list (my example (stupid URL by the way)). Any picklist is also available as RSS-feed. Viewers of a picklist can add a comment to the list. And a picklist can be rated (yes/no) as well by other users.
I see Items on a Yahoo list as a bookmarks. The user can only supply a description per Item and the rest (product-url, date, author) is done by Yahoo. The various lists can be seen as categories, which limit the scope of the bookmarks on a list. The picklist itself seems to be a MicroContent Item as well. One can add comment and simple ratings to it.
[Inspiration Richard McManus]