Pages with "cc:*" values for RDFa attributes, out of 130K pages selected from dmoz.org and downloaded 2009-01-27:

    http://la-cura-franco-battiato.blogspot.com/
    http://milan.milanovic.org/math/
    http://nearlylegal.co.uk/blog
    http://teenslang.su/
    http://tolweb.org/tree/eukaryotes/animals/chordata/synapsid_lichen/synapsida_synapomorphies.html
    http://werewolfshow.blogspot.com
    http://www.bioimages.org.uk/HTML/R146273.HTM
    http://www.bnlog.de/
    http://www.brigwyn.com/
    http://www.columba.it/
    http://www.giuseppegatto.com
    http://www.kirjasto.sci.fi/beckett.htm
    http://www.lacasadifoffi.it
    http://www.legi-internet.ro/blogs/
(plus another one on tolweb.org, another three on www.bioimages.org.uk, and another seven on www.kirjasto.sci.fi, which I've skipped because they're the same as the others from the same sites.)

I tried extracting RDFa triples using rdfadict, with the base URI set to "http://base.uri/" because that was easier than trying to preserve the source URI. All of them resulted in some license data. Five looked either wrong or weird:

(The data below shows extracts from the triples reported by rdfadict, with predicates indented by two spaces and objects by four spaces.)

http://www.bioimages.org.uk/HTML/R146273.HTM says:

  http://www.w3.org/1999/xhtml/vocab#license
    http://creativecommons.org/licenses/by-nc-sa/2.0/uk/
    http://base.uri/\nhttp://creativecommons.org/licenses/by-nc-sa/2.0/uk/

The second one is wrong because the attribute value started with whitespace and got interpreted as relative.

http://www.giuseppegatto.com says:

  http://creativecommons.org/ns#attributionURL
    http://base.uri/www.giuseppegatto.com

http://www.columba.it/ says:

  http://creativecommons.org/ns#attributionURL
    http://base.uri/www.columba.it

http://www.lacasadifoffi.it says:

  http://creativecommons.org/ns#attributionName
    creazioni in ceramica e altro

which apparently translates to "ceramic creations, and more", which doesn't really sound like "The name the creator of a Work would like used when attributing re-use".

http://nearlylegal.co.uk/blog/ says:

  http://creativecommons.org/ns#attributionName
    various authors

which also doesn't sound entirely like "The name the creator of a Work would like used when attributing re-use".