If you are more comfortable with a three-pane layout of your desktop e-mail client, you’re going to dig this. Google just released a new Labs feature called “Preview Pane” which allows you to view and reply to e-mails while navigating your inbox.
Gmail users can enable this feature by visiting Labs from the Mail Settings icon in the upper righthand corner of your mail screen.
A recent study conducted by ExactTarget, an e-mail and social media marketing company, focused on the differences between “subscribers,” “fans” and “followers”, as well as the type of permission-based content that users want to receive through them.
A few interesting insights: