While I was at it, I added my own blog URL so that I get tooltips here as well, without having to leave the default WordPress site :)
Here’s how I did it.
Since I’m using Google Chrome as my browser, I used the addon called Tampermonkey to allow the injection of scripts into sites I specify. If you use Firefox, then GreaseMonkey is the addon of choice for this.
Once I installed the addon, I added the following script. The only editing I did was to add the URLs in the comments at the top. This makes the script run on those sites.
You can find new scripts on userscripts.org (read them carefully) – here’s the location of Wowhead Google Reader.
and here’s the results of looking at it in my blog and in Google Reader:
I hope some people find this useful!