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Today at Where 2.0 Pete Warden and I will announce the discovery that your iPhone, and your 3G iPad, is regularly recording the position of your device into a hidden file. Ever since iOS 4 arrived, your device has been storing a long list of locations and time stamps. We're not sure why Apple is gathering this data, but it's clearly intentional, as the database is being restored across backups, and even device migrations.

Wow - kinda cool and just a little bit creepy. not being transmitted to Apple, but ... what's it for?

I realy like some of what Plymouth State is doing to allow browsing by LC subject. If you click, for examle, Sociology, you are taken to a sort of socioloy portal that contains links to course guidelines, relevant databases, pre-populated searches of the OPAC, reference materials, websites, and the sociology librarian's contact info. Click on a pre-populated OPAC search and you are able to broaden/narrow the search by clicking tags as well as bookmark or choose from RSS options.

What are the differences between a vocabulary, a taxonomy, a thesaurus, an ontology, and a meta-model? Thanks to theInsdier list.