PULP is set to be a social bookmarks and more that can be installed for enterprise use.
Some clever additions are adding content from your mobile device, and also automating this by scanning barcodes from your mobile device to add it to the collections.
Another feature is a type of flagging so others know what the owner of the collection “has” apart from “what they want to have”.
The post explains walking through a bookstore and scanning a book to see if it exists within a friends collection, and if it does, and if they own it, you can borrow it for free instead of purchasing it.
Since instances of PULP aren’t on a common server, p2p feature will enable file sharing.
Some related enterprise bookmarking services are available here.