scanning the use cases -- have we covered everything?

I know that we're overwhelmed with the existing use cases. But I'm wondering if we've got everything relevant? 

For instance,  do we have use cases covering 
* vocabulary services like HIVE [1]
* machine+computational uses

Other missing topics? Add them to the list on the wiki [2],  if you think of it. Maybe some were mentioned at the F2F?

-Jodi

[1] http://hive.nescent.org:9090/home.html
[2] http://www.w3.org/2005/Incubator/lld/wiki/Use_Cases#Related_topics.2C_are_these_covered_yet.3F