I call all of these little gizmos Blog Bling. Nobody pays me a dime to blog about them and I'm not asked to do any reviews. This is all based on what I find (and I mention where I found it), what it looks like, what my opinion is about the widget, how it works, how to install it, etc.
As I blog about them I'll add a link to my sidebar so you can find the link easily or refer someone over here to grab the link.
If you have one of the widgets I blog about on your blog, please leave a comment here with your URL. I have disabled the nofollow on my comments, so every comment counts. Plus, if you are reading about a widget and want more info before trying it out, I strongly encourage you to check out the URLs in the comments to see the widget in action.
Commenting and following is just good blog karma, anyway.