Free tickets to Tuesday's memorial service for Michael Jackson have appeared for sale online.

Despite efforts to keep people from profiting from Tuesday's public memorial service for Michael Jackson, scalpers online Monday were asking as much as $9,000 per ticket to the free event.

Free tickets to Tuesday's memorial service for Michael Jackson have appeared for sale online.

Dozens of listings selling vouchers for Jackson tickets appeared Monday on auction site eBay and Craigslist, the classified ads site, prompting complaints from Jackson fans and others who felt the sales were Unsuitable

"You people trying to sell these tickets should be absolutely ashamed of yourselves," said a Craigslist user in a post Monday morning. "Please flag all of these money-grabbing Unsuitable...if you're a true Michael Jackson fan you won't give money to these parasites."

Organizers of the public memorial service, scheduled for Tuesday morning at the Staples Center arena in downtown Los Angeles, made 8,750 pairs of tickets available through an online lottery. But demand far outstripped supply, as about 1.6 million fans registered for a chance at the tickets. 

Winners received an e-mail Sunday directing them to print vouchers and bring them Monday to Dodgers Stadium, where they were to receive tickets and have a non removable wristband placed on their arms. Those entering the Staples Center on Tuesday must have wristbands to match their tickets.