How To Find Out What's Selling Well on EBay?

[chinaloong]

I've learnt that you should never blindly pick up a load of stock and try to sell it. Instead, you should find out what people are looking for and put it in front of them. That way, you will reduce the chance of ending up with loads of stock that doesn't sell.

With that in mind, do you know how I can find out what kinds of products are selling well on eBay, or how I can evaluate what markets are doing well?

Thanks!