I really like the way that sponsored tags on Stackoverflow have a little icon in them, but most tags are not sponsored so they just have text. Boring, right? So I wrote a little Greasemonkey script to add icons for all tags. Typically, I used the favicon from the official website of whatever that tag is about.
Well, then you can add it. You don't even need to know any JavaScript. Just add
a line to the part at the top where it says var icons = {
. Follow the example of
all the tags that are already there. If the tag has hyphens in it, you'll need to
put it in quotes. For the URL, use a 16x16 image. Typically, the "favicon" from a website works well.
Enjoy!