Google is updating Gmail with priority inbox, which it is said to automatically grade e-mail into four categories: important, important and unread, starred items and everything else.
Google said the product acts like your “personal assistant helping you focus on the messages that matter”.
“E-mail is a great tool, but also a key contributor to overload. There are about 1.5 billion mail users worldwide, and almost 1 million (non-spam) e-mails sent each second. That works out at roughly 250Gb of mail per second, which is the equivalent of 2,000 hardcover books.
“That’s a lot of mail. You can’t possibly read or process it all. You will stress your brain beyond capacity,” Mr Merrill told the BBC.
More info at: http://gmailblog.blogspot.com/2010/08/email-overload-try-priority-inbox.html