To make the most of the holiday selling season on eBay, you need to understand the current eBay marketplace. Market research can help you figure out everything from the best time of day to sell an item to the best auction title keywords, the best starting price, and the best listing duration, so you can pull in the highest possible profits.

EBay offers some free, as well as paid, tools to help with that research. And companies that buy eBay's licensed data, like Terapeak, HammerTap, and mPire, offer even more advanced capabilities, detailed data, and in-depth analysis.

4 Seasonal Strategies

Uncovering the...