Select the Insert menu and then select More Gadgets.
Find and open the Insert menu in the Google Sites Editor. You will be able to see a list of gadgets you can add to your site, like Links, Tables, and Images. Click on the More Gadgets option. This will allow you to add customizable tools like POWr RSS Feed to your site.
The Gadget manager will be visible. Click Add Gadget by URL. Copy and paste this URL into the box. Click Add to finish.
Now that you've added your new, editable RSS Feed Widget to your Google Sites page, you might want to resize the Widget. Use the different options in the window to select the height and width of your plugin. If you'd like, you can add a border, title or scrollbar to your RSS Feed Widget, but we don't advise it. You’ll have more editing controls directly through the plugin.
Set up POWr RSS Feed
Visit your live Google Sites website and select the settings gear in the top right corner of the RSS Feed Widget.
In the POWr Editor, click Import Existing RSS Feed, find RSS Feed- and click Copy.