The Inside AdWords blog has a brief but fact-filled Q&A style post about Google updating AdWords logins to Google Accounts.
Though updating to Google Accounts will remain optional from October 19, 2005 until January 15, 2006, we advise you to complete the process and begin using your new Google Accounts login as soon as possible. After January 15, 2006, you'll need to update before you can access your account.
Optimising Digital Marketing Campaigns with Search, Social and Analytics
At SES London (9-11 Feb) you'll get an overview of the latest tools, tips, and tactics in Paid, Owned, Earned, Integrated Media and Business Intelligence to streamline your marketing campaigns in 2015. Register by 31 October to take advantage of Early Bird Rates.