[casual_games] standard practices in multiplayer gaming?

[Laxmi Desai]

Hi all, 

I want to know if there are any standard practices in online multiplayer (casual) gaming. 
Are there any standard protocols used? (other than UDP and TCP) Any effort being done towards setting up such standards or standard methods?

Like in case of the Instant messengers all most all of them use Jabber. a set of streaming XML protocols and technologies that enable any two entities on the Internet to exchange messages, presence, and other structured information in close to real time.

Is there any such standard practices in multiplayer gaming industry too? 
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