PUBLIC MARKS with tags security & web-based

If security is your thing, you may want to give Hushmail a try. Hushmail encrypts all of your e-mails and automatically scans for viruses and SPAM. It’s free to sign up and get an account, but you can add lots of features to your account for a relatively low cost. You can even use Hushmail with your website to make sure e-mail is secure from any address you use. Hushmail also encrypts files when sending them through e-mail so you’ll never have to worry about someone discovering your data again.

a generic messaging and capability-based security model for this world of heterogeneous application interfaces

a simple, but multi-functional www application. depending on how you use it, it can fulfil many roles.