International man of history. Author, broadcaster, @HooverInst senior fellow. Latest book is Kissinger, vol. I: The Idealist (Penguin, September 2015).

We harness technology and human ingenuity to help make change work for you. #LetThereBeChange

Extend Salesforce with apps from AppExchange. Bring together apps, insights, and Trailblazers on bit.ly/appexchange-medium.

Passionate about hospitality and tech. Visit http://flyt.io to find out how we can transform your customers' experiences and increase efficiency.

Sporadic tube, rail and bus updates for London. And #boats. We have #boats. Also, trams. Not really real, really. At all.

Mastercard’s official Twitter channel for all things Priceless.

MasterCard News & Views. Believe in a World Beyond Cash? Join the discussion @ http://mstr.cd/JrE7FP. Tweet @AskMasterCard for #CustServ

Anchor Channel 4 News and Unreported World. All views mine. A RT does not mean I agree/condone/disagree - just that I think you should see it.