Pluginweb.Net

Nick Stakenburg is beating the drum of getting users to upgrade their browsers, and has created PushUpTheWeb.com.

Pushup is an effort to push the web forward by helping users update their outdated browsers. Give your users a better web experience today by installing Pushup on your domain!

By putting the script up, users will have their browser checked out, and if there is a new version it will let them know in the right hand top corner.

You can configure it to use reminders, and style it how you wish. Friends don't let friends run old browsers!