Everyday in your working days, you probably need to check all the same e-mail, news, website or maybe favorite blog site. You should try using Fluid.

Distinguishable Icons

With Fluid, you can convert all of them into each separate applications, which are easily distinguishable. And you will find that you won't need to cycle all your opened web browser tabs in order to find particular site. The icon is customizable and you can put it on your Dock.

Getting Notifications from Your Mail

You can get the notifications from your e-mail, e.g. Yahoo! Mail, right on the top of your Dock. With those newly created Yahoo! Mail and Hotmail applications, your Mail won't be a loner anymore.

Easy to Hide

The other benefits of being in separate applications is that you can easily hide it; You cannot hide one tab or one window alone if you're using the same web browser, it will hide all of them instead.

Bookmarks in Your Stack

Combining with Leopard's stack feature, creating unique applications along with their fav-icons will be a wise choice.