The adverts on the top of this page are often for excellent clothing and shoes really nice. When I check there reviews... not so nice. The latest scam is for them to send about one in three people the item they ordered but extremely poor quality and random sizes. I assume this is so they can keep the con going for a bit longer than normal. They do of course put some of there own reviews in saying what wonderful product they are but they are soon overwhelmed by the negatives.
Freecycle is another great place for scammers. Specially on the larger sites where they don't check them before there posted. You have to email the moderators to let them know that its unlikely that the poster has loads loads of second hand laptops to give away. Sometimes its worth playing them for a bit.
One women put on she had a near new television to give away. Her poor English gave her away. I played along. "My husband has beaten me up I have had to move to Wales, I will have it sent by courier you just pay for the courier". Of course payment via Western Union! I kept it going for a few weeks before but I got bored. Thinking about it, next time I may take up the offer. She had to collect the money from (if I recall rightly) from a petrol station? I will send her a penny if I can!