Here are some of the stumbling blocks:
J A Bennett’s very easy directions.
Embedded Comment Boxes
Blogger has improved this feature, but often the page has to load twice. If your blog contains many gadgets or images, this slows the process. Check your comment box to be sure it reloads quickly after a comment is made. Some bloggers report challenges with embedded comment boxes. If your page is slow reloading after a comment is made, consider switching to a pop up comment box instead.
Ninja Captain Alex is one of the A to Z Challenge co hosts and can be found HERE
Don't forget to vote for your favorite A to Z video. Click tab above that says "Vote for your favorite video".