Message Spy logs all instant messages sent and received on AOL Instant Messenger.
Message Spy is a free to try software. You can free download and try it for an evaluation period.
TextEncrypt 1.1.0.3
TextEncrypt allows you to send encrypted text via unencrypted channels. This program encrypts text so that it is not readable as a human language. Send this encrypted text to another person and they can decrypt and read it.
Timed SMS Scheduler 1.0
Using Timed SMS Scheduler, you can schedule SMS to be sent to anybody at any future time. The recipient will see the message exactly the same as if you've just typed it in yourself.
KYC
KYC, stands for (K)now (Y)our (C)ustomer is a small perl script that can send message, email and log message.
Excellence Flash Message
FlashMessage is a handy tool that help you rapidly copy the message to where you want to paste
SplitEmail 13
SplitEmail is an email plug-in which allows sender to mark sections of an email private and confidential for specific recipients. You can also highlight parts of a message for a particular recipient while leaving it un-highlighted for everyone else.