You can break you web apps out of the Browser, at least if you are using Chrome or IE, in Chrome click
on the menu button then hover over tools, click on Create Application Shortcut. You can add apps such as YouTube, Facebook, Gmail and more.
Both Microsoft Office 365 and Google Apps office offer a good productivity suite that includes email,
word processing, spreadsheets, calendars and more. Here's a good review of the two products that brings out the pros and cons of each.