Free online book: Introduction to information retrieval

• View and download the book at www-csli.stanford.edu/~hinrich/information-retrieval-book.html
• More information (in German): Book review: Introduction to Information Retrieval (and fulltext)
  

Thunderbird, Mac OS X, and vCards

IMAP problems forced me to temporarily switch from Apple's Mail.app to Mozilla Thunderbird (at work, I use it all the time under Linux). Trying to get my Mac OS X address book contacts into it, I did some research:

• Thunderbird 3.1 Beta supports the Mac OS X address book.
• The extension MoreFunctionsForAddressBook can import vCards into the Thunderbird address book (and you can select multiple Address Book entries and export them as a .vcard file).

Alas, Mail.app still does not support tagging. It would be nice to have an interoperable standard here (GMail's labels are implemented differently from Thunderbird's tags).