One of the more popular Twitter web apps, Seesmic Web, allows you to process your Twitter messages in an emaillike interface...

essentially its a desktop app for your browser, minus a few bells and whistles. Recently though, theyve added a few extra bells, they are as followsHave you used Seesmic Web before? Let us knowInline previewsWith Seesmic Web, you can now preivew certain links without leaving your current browser window. e.