-The network topology is also different to various other chat protocols,
-like for example IRC. IRC has tree style network, but SILC network can be
-described more as an hybrid ring-mesh network. The routers in the network
-form a ring, but they can also have other direct routers (secondary routes)
-to other routers. A router in the network is also called a cell, when it
-has multiple servers and clients connected to it. The cell can also have
-backup routers in case the primary router becomes unresponsive.
+The SILC protocol also supports so called detaching, a novel idea where
+it is possible to detach from the server without actually quitting the
+network. It is then later possible to resume the connection back to some
+server in the network, and be like you were never gone.
+<p>
+
+The SILC protocol also allows distribution and exchange of public keys
+and certificates through the SILC network. It is also possible to fetch
+detailed user information from other users through the SILC network. It
+is possible to fetch for example users's business card, pictures,
+certificates, etc.
+<p>
+
+SILC protocol also supports services, which are extensions to the core
+protocol. They can be used to augment the features of the protocol or
+to add entirely new features without breaking backwards compatibility.
+Services can be negotiated online and authenticated with passphrases or
+with digital signatures.
+<p>
+
+The network topology is also different from traditional conferencing and
+chat protocols. The SILC network forms so called hybrid ring-mesh network
+at the router level, and star network at the server level. This sort of
+network topology allows better scalability and faster delivery of packets
+than traditional spanning tree style network. The router servers and normal
+servers also has the distinction that only router's know global information
+and keep the global network state up to date, and normal servers keep only
+local information up to date. This significantly increases the scalability
+of the network. The network also supports backup routers which can be
+used to protect the network against netsplits.