Email
With Gmail, you can use a plus sign in your email address, after which you can put any characters and the email will still be delivered to your inbox. This is a great tip for spam filtering. For example, when you want to register with the New York Times, you can give them your email as: youremail+nytimes@gmail.com. Then if you start getting spam to that email address, just filter it. Note: Some websites improperly exclude the plus sign as a valid e-mail character (even though it isn't).
When you create a Gmail account, you actually get two email addresses -- one is username@gmail.com while the second email address is username@googlemail.com. Your inbox will contain all emails to both addresses. Knowing this, you can give out one version to your close friends and family and use the other to signup for web services, etc. This will easily allow you to filter, detect and delete spam.
Tired of receiving spam after signing up for an online service? Create a disposable email account on the fly. When you're giving out your email, just make one up on the spot, end it with @trashymail.com. You can check your inbox, no password required, at www.mytrashmail.com. Note: There is a more secure temporary trashmail service that is password protected.
Knowing this you can read webpages through email without requiring a direct web connection -or- check out the front page of your favorite blocked website. The email address that makes all this possible is: www@web2mail.com - simply send an email with the url of the web page of interest in the subject field (ex: www.cnn.com) and within seconds you will find a copy of that web page in your inbox. This is a perfect solution when web access is blocked or severely restricted. Trickery at its best!
Suggested by: Sneaky Snake