Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98 James Fallows - When a company is charging money for a...
When a company is charging money for a product - as Evernote does for all above its most basic service, and same for Dropbox and SugarSync - you understand its incentive for sticking with that product.