Easily can happen when a visitor to ANY site enters the "names and e-mail addresses of...friends...". If you really want them to visit the site, just send them the URL yourself in an e-mail:
- http://www.techweb.com/article/print...section=700028
March 24, 2006
"The Federal Trade Commission on Thursday nailed a spammer with a record-setting $900,000 fine for violating the CAN-SPAM Act. According to a complaint filed by the FTC, JumpStart Technologies of San Francisco, Calif. has spammed consumers since 2002, sending millions of messages disguised as personal e-mails in an attempt to hype its FreeFlixTix Web site. JumpStart, charged the FTC, collected e-mail addresses by offering free movie tickets to consumers in exchange for ratting out the names and e-mail addresses of five or more friends...
The spam scam also misled consumers who took the bait and went to FreeFlixTix, with some of the "free" ticket offers requiring credit card registration that in many cases resulted in charges made to the account. JumpStart's FreeFlixTix site is now offline..."
:(