I emailed WW and asked if she got an invite to Quechup.com and she told me it was spam, so I investigated further. When you sign up for Quechup they ask you for an email addy. I gave them my hotmail addy because I don't have any contacts in it. Turns out Quechup hijacks your address book and sends out invites to every one in it, so don't sign up for it. Here's an article about it.