Here is a list of five nice WordPress plugins that allows you to integrate eBay with your WordPress site. All plugins are downloadable for free from WordPress plugin repository.
Using eBayflashseller you can easily display eBay auctions from a unique seller, inside a cool flash carrousel interface. All you need is select some parameters for matching your needs and your listing get automatically displayed in the module.
Using WP eBay Daily Deals you can easily insert eBay Daily Deal listings into your WP sidebar, and in this way you can easily earn commission sales. This plugin allows you to select the number of deals to show, you can show specific deal catagory, it allows you to use eBay Partner Network and also hides affiliate link to ebay.
It Output RSS to HTML, it is a simple WordPress plugin, easy to install, set up and customize. It easily places feeds from eBay Partner Network into your WordPress blog. These can be embedded inside posts, placed via widgets or inserted into themes. This plugin is ideal for the website owners who want to make more money from their website by promoting eBay’s affiliate programme.
It allows you to display eBay listings on your website. Its uses a a simple shortcode inside your page or post. It can Filter results by keyword, seller etc.
WatchCount.com WP Plugin is a free eBay WP plugin that displays Most Popular (or a seller’s) eBay items in a blog’s sidebar or posts. Its sidebar widget gives a real time display. It allows you to display eBay items from any specific seller, or show eBay Daily Deals.