This trick is something I just set up on my own site and is specific to blogs and sites running self-hosted Wordpress. Unfortunately I don't have an alternative for other platforms or wordpress.com hosted blogs. However if you have wordpress installed on your own hosting read on for a very cool trick to get more people to click from your site to your etsy shop.
I've been using a widget here on this blog called LinkWithin for quite a long time, at the bottom of each post it links to related posts here on the blog. I thought that it would be great to have something like this on my website but linking to my Etsy items. I searched through a lot of related post wordpress plugins before finally finding one that will pull items from an external site. The plugin is called nrelate and it lets you pull related posts not just from your blog but from any site in your blogroll. I have the links I want displayed in a separate link list and only my Etsy shop in the blogroll. I set the plugin to show 0 posts from site and 5 from my blogroll and now I have Etsy items beneath every posts on my site.