The road to print pubs' successful digital paywalls has been bumpy -- but perhaps no other magazine has suffered the thumping bump The Economist just did. The pub just realized it's been mistakenly letting some digital subscribers have a free ride for up to five years. That's a loss of $110 a year for each customer. Oops!
The free-loading subscribers have been notified, and the pub is moving on to a new app it hopes will be work better than its old, mistake-prone database.