With the launch of Google Plus 1 in the last few days you can see a number of sites begin to adopt this feature.
However, Google don’t yet provide support for Internet Explorer and I spent a few minutes trying to work out why it wasn’t showing in Internet Explorer.
At this stage Google don’t support any Google apps in IE7 and it does not look like Google +1 works in IE8 either but Firefox 4 seems fine.
We’ll keep you updated once Google Plus1 rolls out to Internet Explorer