with IP addresses running out developers created a method to use multiple SSL certificates on 1 IP address, the only thing stopping this was browser support. Browser support for this is now wide spread.
How do I get Firefox to re-check a websites ssl certificate? It's giving me a message saying my site's ssl certificate is expired when it isn't.
A description of SSL (and TLS), how it works, and what security it provides. Written for the layman by LuxSci: provider of secure email services.
An article on the Overview of SFTP, FTPS, SCP and FTP
Discussion of the similarities and differences of TLS and SSL encryption by LuxSci: provider of Secure Email and Web Security Services.