Twinkylinks, in a nutshell:
If you comment on blogs: Twinkylinks helps people find your Twitter account, through the comments you leave on others’ blogs.
Each blog that has Twinkylinks enabled will display a little icon (like this: 
) next to your comments. That icon links to your Twitter account. Click here to set up your own Twinkylink. It’s free.
If you own a blog: Twinkylinks lets you see who all of your commenters are on Twitter. It also helps your readers connect with one another, and encourages more (and better) comments.
To set twinkylinks up on your blog, you paste a really simple piece of code into your blog’s template. Then, each comment on your blog will automatically show a little icon (), next to each commenter’s name, linking to their Twitter account. Twinkylinks is free. Click here to set up Twinkylinks on your blog.