You can also embed a Scribd document to a post on your Learning Log. You will need to create an account on Scribd and then upload any of the allowed formats.
Scribd makes it super-easy to upload just about any type of content. You can even link to your Google Docs account and then select any number of documents you want to export to Scribd.
I recommend using Scribd for embedding text documents, as embedding a Google Docs document does not format as well. So, whenever you have an artifact created in Google Docs, embed it using Scribd instead of linking to it. Your reader can stay on your blog and it looks even more professional.
Please read this WordPress.com support document on how to locate the embed code for a WordPress.com blog: http://en.support.wordpress.com/scribd.
Here is an example of a Scribd document embedded on a WordPress.com blog: