1. An organization, which wants to supply Internet privacy communication between it and its clients, may use the SSL  protocol.
2. Bank-Systems are using this protocol to allow their clients to view their confidential accounts’ data on their own browser and to make their account orders from home.
3. The same idea is applied in academic organizations. Students can view safely personal information on the web, such as course grades.
4. Most electronic commerce (i.e. the sharing of personal details and credit card numbers) through the net is protected under SSL.

More examples:

One common use of SSL is to secure WEB HTTP communication between a browser client and a Web Server, which is called HTTPS. HTTPS uses 473 server’s port number instead of 80 server’s port number for the real HTTP.
Another usage of SSL/TLS is within e-mail applications that use IMAP - Internet Message Access Protocol.

There are some kinds of SSL toolkit libraries. Each requires the use of a licensed public key package in the US, of Security Dynamics.
Existing toolkits for implementing SSL:
1. SSLRef: SSL 3.0 written by Netscape Communication.
2. SSLPlus: Commercial source code toolkit.
3. SSLave: SSL 3.0 written in Java.
4. SSLeay: a free non-commercial implementation of SSL 2.0 and 3.0. Includes a public key implementation, which may be used outside the US.