I’m still trying to work out the difference between widgets and plugins (though this article helps) but have found out that as a wordpress.com (not wordpress.org) user, I have access to the former and not the latter.
Every time I tried to add a Pinterest button, half the text I copied disappeared! I then read around a little and discovered a handy alternative. Here it is in a few brief steps:
1. Select an image that you wish to use as the ‘button’ and add it to your media library on wordpress.com.
On this blog you’ll see a pinterest link in the footer and one to the Big Comic Relief Crafternoon in the sidebar. For one, I took a screen shot of my Pinterest profile and saved as a jpeg image; for the other, I saved the image that the Crafternoon social media button uses to my pc.
4. Input the url of the image (you can find this by opening up another window/tab of your web browser, going to your wordpress.com media library and selecting the image in the media library; the url appears on the right hand side of the page), any title that you wish to add and then the url of the page to which you would like to link.
5. Go to a page on your blog (it doesn’t matter which as it should appear on all of them); the image should appear in the location that you selected. Click on it to check that it works.