John Battelle asked Google what details they store and I think this has stark implications for Ireland with the new Data Retention Spy Law.
These “server logs” typically include your web request, Internet Protocol address, browser
type, browser language, the date and time of your request and one or more cookies that may uniquely identify your browser
In other words, yes, Google does record this data. But, does it KEEP that data, I asked? The answer:
Yes
Kind of on the same topic, via Google Blogoscoped is a mini video on why the L in Google is green.