Google added an interesting feature that shows stats for services like Google Latitude, Gmail, Google Search and more. If you go to the Account Activity page, you can opt in for a monthly report that provides a “summary of your account activity across many Google products”.
It’s like a personal Google Analytics, but it’s less detailed and it focuses on security features. For example, Google shows a list of locations and browsers detected when you’ve signed in. If you never use Opera, but the browser is included in Google’s list, then it’s likely that someone else found your password. The activity page also includes the number of emails you’ve sent and received, the number of Google searches and stats from Google Latitude, Picasa Web and YouTube.
After activate the Google Account Activity, you will received the Email to view your account activity report. It would be nice to aggregate the data in real time and integrate account activity with Google Deshboard, which already show some stats.