Prepare a server comprising an information provider, a login processor, a user storage unit, a mail sender, and the like, on the internet. The information provider provides information while improving contents of incentive (prize or the like) as increase of the number of terminals which have logged in...http://www.google.fr/patents/US6938098?utm_source=gb-gplus-shareBrevet US6938098 - Method for providing digital contents with offering access incentive
Method for providing digital contents with offering access incentive
