Hi there,
Today i recieved an invite to ringo.com (apparently some hotmail-related picture exchange) from a dutch coasterguy (SirKrypton, if you mind). After i checked the authenticity i chose to sign up as well (AFAIK, ringo.com is some hotmail-related picture exchange). I finally ended up on a page displayed all coaster-related (both CS and wws) nicks. I proceded and apparently, with neither my knowledge or my expressed agreement a LOT of "semi-forged" e-mails were sent from my hotmail account.
So, in case you got any of these invites, i would recommend you NOT to sign up there.