Webslices/Webchunks. My secret dream was a smooth integration of Webchunks into Places so the user's personal toolbar could contain Webchunks just as it can contain bookmarks, folders, feeds, microsummaries. But adding a new consumer to Places is anything but a trivial operation because Places' consumers are almost hard-coded in Places itself... I think Places should evolve into a consumer-agnostic architecture where bookmarks and all others are only consumers of Places and do not require a single line of code added to Places itself. A well documented and easy to understand API could trigger a new class of extensions to Firefox that other browsers could not immediately or easily afford. Places2 ?