[about collection copyrights:]
There's a little more to it than that: copyrights
apply to "creative
expression", and "selection" of what to present is a creative act
specifically recognized (see Feist v. Rural).
Ok, but neither Bomis nor anybody else can claim a collection
copyright over Wikipedia in this sense, since nobody, and certainly
not Bomis, actively selects articles for presentation in a manner that
could be called creative expression. Or maybe: we all own tiny bits of
the collection copyright in this sense, since we all occasionly reject
articles.
Axel