Gmail is a killer productivity App. Steve has a series of terrific posts on how to get the most out of Gmail. If you don’t have a Gmail account, go get one and take it for a spin. You can really turn it into your personal nerve center. Steve’s piece has several parts:

• How to turn Gmail into a massive personal database (Gmail + the Google Toolbar)
• How to get real-time news updates in Gmail (Gmail+ Google Talk + Twitter)
• How to automatically store your bookmarks in Gmail (Gmail + del.icio.us + Yahoo Alerts)
• How to manage Calendar and To-Dos in Gmail (Gmail + Backpack + GCal +  GTalk + iMified)
• How to blog from Gmail (Gmail + WordPress/TypePad/Blogger + IMified)