Question: I won in the yahoo lottery but the link isn't working. is it just a trick? this lottery of yours...? 

Answer: Did you enter a lottery from Yahoo?  If not, then it's probably a scam.  Forward your "winning" e-mail to spoof@yahoo.com  If you clicked on a link in the e-mail, change whatever password you entered through that link.  Heaven forbid, if you entered any credit card information, call the credit card company and tell them what happened.
This question from the Yahoo Q&A forum is categorized in the topic: Business & Finance