Adding Your Avatar
There are several ways to show an avatar (a picture that represents you) next to the comments you posted.
Upload Your Avatar Locally
After log on, you can visit here to upload a picture of size 60×60 pixels, under the section Avatar that is close to the bottom of the options page.
If you upload a picture larger than that, it will be cropped.
Twitter (No longer supported)
If you sign up here with an email address you use on Twitter, the avatar from twitter will be recognized automatically.
Gravatar (No longer supported)
If you sign up with gravatar to manage your avatar across multiple social networking sites, it will be recognized automatically.
Note: Gravatar and Twitter support are dropped due to cpuload issues from waiting for responses from these sites in real-time commentaries.