Twitter to tap people without Twitter accounts for money

Many advertisers think Twitter does not have enough registered users — especially compared to Facebook — to matter.
Twitter will start showing ads to its people who visit Twitter every month but who don’t have active user accounts, the company has announced.
The number of such “logged out” users is somewhere around 500 million.
The change means that if you click on a tweet that appears in a Google search, for instance, you may see ads on that tweet page or on the tw