Here's some instructions on how to do that.
First you need to be signed in to blogger.
Open the BM Library Manager blog using the Layout tab, or you can click on the crossed spanner and screwdriver icon below the blog roll area (illustrated below). If you go to the layout area, click on the Edit link in the BM Staff Library blogs section.
The following illustration shows you the window that opens. You will be able to see all the other blogs that are in the blog roll. To add a blog, click on Add to List.
Another little window opens. Enter your blog's URL (web address) in the box provided and click on Add. Now click on Save in the Configure Blog List window.
If you've gone in to the Layout area you will need to click on the Save button at the top of the Layout window to save all the changes.
That's all there is to it. Your blog should now be added to the blog roll. You can call me if you get stuck.