An entertainment system comprising in one embodiment an Internet site configured to enable participants to submit content, such as jokes, and view the submissions of others. The site also enables participants to cast a vote for the best content, e.g., the best joke, with each visit. The votes are redeemable...http://www.google.de/patents/US6343990?utm_source=gb-gplus-sharePatent US6343990 - Entertainment system offering merit-based rewards
