Guides for Amazon sellers who buy on eBay

Step by step: match an eBay listing to your exact Amazon item, subtract Amazon fees and shipping, check the rules, and keep records. Includes a worksheet.

Where to find a DeWalt or Milwaukee model number, how to read bare tool and kit endings, and how to match an eBay listing to the right Amazon item.

A matching guide for used camera lenses: mounts, versions, glass condition and missing caps. MarginPing does not support camera lenses yet.

A guide to OEM part numbers, superseded numbers, OEM versus aftermarket versus used, and fitment. MarginPing does not support auto parts yet.

MarginPing watches new eBay listings for the DeWalt, Milwaukee and Makita tools you already sell on Amazon, and works out your profit after Amazon fees.

How to match eBay video game listings to the right Amazon item: sealed, complete or loose, editions, regions and lots. MarginPing support is in testing.

eBay saved searches are built in, but show no Amazon price or fees. What they do well, where resellers hit limits, and how to pair them with a watcher.

Tactical Arbitrage searches retailer data for Amazon sellers. MarginPing watches new eBay listings for products you already sell. Compared from public pages.

Replen Catcher, uBuyFirst, Flipmine, Swoopa, eBay saved searches and MarginPing, described from their public pages and grouped by who each one fits.

What a paid lead list is, what to ask about group size, where a list is the better fit, and when watching eBay for your own products fits better.