The PM is following the example of French President Jacques Chirac, who has already set up a website to recieve the French people's opinions.
Of course, Mr Blair won't read all the e-mails that are sent to him.
A monthly report will be given to him, and he will decide which ones to reply to.
One million letters
Last year Downing Street received over one million letters, and are expecting even more this year.
You can contact Tony Blair at www.number-10.gov.uk.