I've wrote Rakuten tag plugin for Jekyll.
This is inspired by Amazon Plugin for Octopress.
You can use this plugin like this.
{{ "nikondirect:10000641" | rakuten_large_image }}
Liquid error: Connection refused - connect(2) for "api.rakuten.co.jp" port 80
{{ "nikondirect:10000641" | rakuten_medium_image }}
Liquid error: Connection refused - connect(2) for "api.rakuten.co.jp" port 80
{{ "nikondirect:10000641" | rakuten_small_image }}
Liquid error: Connection refused - connect(2) for "api.rakuten.co.jp" port 80
{{ "nikondirect:10000641" | rakuten_link }}
Liquid error: Connection refused - connect(2) for "api.rakuten.co.jp" port 80