Online, by Post or just in the High Street - if you see a Scammer or Fraudster or Con-man working hard to defraud people - often the most vulnerable - the elderly and financially naive - you need to let the rest of the world know.
The Scamalot Scam Tip Off Report is the best way to publicize a scam that you've seen (anonymously, if you like)
or a scammer that has tried to rip you off.
Analysis of the Scam Tip Off reports shows that the 'Advance Fee Fraud' (aka. Nigerian) scam is the top reported scam followed closely by 'Classified Ads' (Craigslist and other local websites), makingup the vast majority of scam solicitations worldwide.
Spam promoted email scams make up the majority though, with the various Lottery and Nigerian-type scams.
Job scams and Dating scams are still very common. Note that a lot of scams tend to be a mixture of these so clear classification is difficult.