Example plugin (for developers)

Hey,
The "k2" component and joomla "event"s there are samples with many functions like this:

in k2:

	function onK2PrepareContent(&$item, &$params, $limitstart)

	function onK2AfterDisplay(&$item, &$params, $limitstart)

	function onK2BeforeDisplay(&$item, &$params, $limitstart)

	function onK2AfterDisplayTitle(&$item, &$params, $limitstart)

	function onK2BeforeDisplayContent(&$item, &$params, $limitstart)

	function onK2AfterDisplayContent(&$item, &$params, $limitstart)

	function onK2CategoryDisplay(&$category, &$params, $limitstart)

	function onK2UserDisplay(&$user, &$params, $limitstart)

k2 ex


in joomla :

onContentPrepare

onContentAfterTitle

onContentBeforeDisplay

onContentAfterDisplay

onContentBeforeSave

onContentAfterSave

onContentPrepareForm

onContentPrepareData

onContentBeforeDelete

onContentAfterDelete

onContentChangeState

onContentSearch

onContentSearchAreas

But i didn't find any documentation for developers in your website. I need a sample component for develop my own plugins and connect them to your extensions.
I need sample plugin for these extensions:
easyblog - easydiscuss - easysocial - komento
Can you please help me with this?
Thanks