If you are a Mac user of Safari and happen to have a google account, you may want to check your preferences and site info/cookies - google is doing some very underhanded things when considering that you check your personal or business account under gmail or google+ and all of sudden, there's "cross-selling" going on under you nose. You may want to turn on stealth browsing in Safari or disable cookies and etc. Actually the EU and others are onto them and fines are being claimed at this moment.