Below is a test of a plugin called “Unfiltered MU 1.3.1”.
The plugin is available by going to:
Dashboard > Appearance > Plugins
You simply “activate” it in the plugins list and it will give you the ability to embed external resources (that use iframe or javascript to embed). This means that you can add google docs and other resources that provide “embed” code. It’s pretty cool, if you have a minute you can give it a try!
In order to use it you need to copy the “embed code” provided by a site, edit the page or post you want to put it in and switch to “text” view instead of “visual” in the editor screen (tabs located at the top-right of the text editor). This switches you to “code” view and allows you to insert the embed code needed to make it work!