I'm developing a very similar thing recently. Because nowadays everything you do will probably appear on the Internet, I call it 'automating your day recording'

I'm developing a very similar thing recently. Because nowadays everything you do will probably appear on the Internet, I call it 'automating your day recording'. There's more you can add to this, such as 4sq check-ins, Instapaper/Pocket readings, YouTube watched, etc. Then I realized that it's just FriendFeed, if you bother to add a social element.