Hello lets start like this:
Connecting to a Server
Depending on your gaming preference, you may select any one of the server variations: SMP, CMP, or HMP for survival, creative, or hardcore multiplayer modes, respectively. There are also free-build servers where the objective is simply to explore building structures. Other nonstandard server types that do not fit in the above classifications are also available.
To join in any one of the Minecraft multiplayer modes, you will have to connect to the server hosted by an official server service, a dedicated or virtual private server, or another player in his or her own home machine. Upon launching the game, you will have to enter your login details and select the Multiplayer mode from the list of options on the main menu. Next, click the button for Add Server. You will then be prompted to key in the IP or web address of the server you are joining. A very good server can be found on IP: game.moncraft.net :-)
Minecraft Single-Player and Multiplayer Modes
When on single-player mode, the primary goal is just to survive attacks by hostile mobs by building shelter. Minecraft multiplayer mode, on the other hand, offers a more versatile gameplay by playing against other human gamers connected to the server. In addition to surviving attacks from hostile mobs, players in this mode will also have to protect their buildings from other players. On average, about 50 players are hosted on the same server with an uptime of about seven days.
The PvP Minecraft Multiplayer Server
PvP stands for player versus player and is a type of Minecraft multiplayer server where players are intended to fight against each other. For a more hostile environment, there is also the Hardcore PvP.
The Spleef Mini-game
Spleef is a popular mini-game in Minecraft multiplayer mode where players are set out on a skirmish. The main objective is to be the only surviving player. Due to the various gameplays that can be hosted on a Minecraft multiplayer server, the game has been popular among gamers of all ages.
And do not forget to visit http://gaming-needs.com, they have lot of good stuff about minecraft