Google's Gmail Blog have finally posted about the use of dots in Gmail addresses and appending a + symbol with other stuff for filtering and combating spam and evil marketing emails.
Been there, done that. I already posted (with my usual detailed but hopefully practical take, of course) on those productivity / trivia tips and tricks - as far back as 2005!
- use of . dot or dots in Gmail addresses
- use of + and Gmail aliases for filtering and organising your email, and fighting spam (basically using a Gmail + address as a disposable email address or DEA).
(Gmail is known as GoogleMail in the UK & Germany.)