Courier, herald, are terms which mean 'messenger'.
A messenger. This term applies to any pin that takes out another pin.
the term is PROPHET
I guess its AOL Instant Messenger
Descargar Messenger is another way to refer to the Windows Messenger Service. It can be downloaded online for free from Microsoft, CNET, and Soft Sonic.
The term "messenger bag" refers to the bag a messenger carries, similar to postbags in some countries. They are similar to backpacks and usually have straps that adjust to fit the messenger's body, making delivery of the message easier when walking or riding a bicycle.
You can use meebo. On that site you can log onto aim, msn, messenger, yahoo messenger, etc.
Aim, Yahoo Messenger
WhatsApp, Viber, Telegram. Btw, you can use them all in one app with an all-in-one messenger, such as Umnico Inbox.
E-Buddy is a type of mobile instant messaging program, such as AOL's Instant Messenger. It can interface with other instant messaging programs, such as Windows Live Messenger, Yahoo Messenger, and AIM.
Helping messengers! :D
A hormone is a category of messenger molecules secreted by one cell to send a signal to another. There is no other name for this broad category, but there are sub-types of hormones (e.g. steroid), and then individual names of hormones (e.g. prolactin).
Messenger is another word for carrier. Additional synonyms include shipper and courier.