The Follow by Email Gadget
This option will allow parents or any visitor of your blog to sign up for automatic email updates each time you post. Guaranteed to increase your popularity by at least 18%. Additionally, it will only generate one email per day - reducing recipient frustration by 4% to 7% and reducing teacher anxiety by .2%.
Here's how explained in about a minute:
The Navbar Gadget
Have this on your classroom blog? Get rid of it!
You are right to question me. I'll work harder to earn your trust.
The Navbar can allow students, parents, and other visitors to your blog to navigate to different blog that you have absolutely no control over. In the education world we call that an AEBI - An Extremely Bad Idea.
Here's how, explained in about a minute: