I'm a developer at enigma.io, which is a public data search-and-discovery platform. With following all of the PRISM stories, I've been looking into the data we have on U.S. government contacts going back until 2006 and found a lot of interesting entries where Google is the vendor (descriptions for the servies include supoenas for personal data, "information check", "expediting records", "subscriber info", etc)...I collected exports of these datasets filtered to where Google is the vendor and threw it up on Google Drive (lol) over here:
https://drive.google.com/a/enigma.io/folderview?id=0B0YuuXl1EUquVnhnQmh1ckRDUU0&usp=sharing#list
You can also download a ZIP of all of the CSV's here:
https://mega.co.nz/#!JY8zUTbC!KmogFX_uoY-GWqpsTmCyLG_-nq0MLzU9s8zLDTwVguw