SAP help-Efficient way to look

SAP help-Efficient way to look
Iam really surprised by the way people post links to "sap help" when posting questions.
Is there an efficient and quick way to look the SAP-help when one is looking for special things.

I only got this far

http://help.sap.com/
Pressed the "SAP NetWeaver" link on the left side
pressed "English" documentation
Then SAP NetWeaver Library -clicked "Developers Guide"

I hope up to this poing Iam right,From here on If Iam looking for XI topics like message mapping or BPM;how should I proceed to find it...

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Check the below link of help which points to PI 7.0

http://help.sap.com/saphelp_nw70/helpdata/en/c9/775b3b82646c3ae10000000a114084/frameset.htm

And in this topics are organised as which objects belong to which area...

like BPM it is a part of the Integration repository so details about the BPM can be found in Integration repository topic area..

similary mappings.. too
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I only got this far

http://help.sap.com/
Pressed the "SAP NetWeaver" link on the left side
pressed "English" documentation
Then SAP NetWeaver Library -clicked "Developers Guide"

everybody goes this far only :) ..... once you get on the above page you need to type in the words in the Search option so that you get to the related results.... it is on the Top-right portion of the page
In addition to normal search you can also opt for Advance Search option to filter your search area.
Please note that the search results will contain many additional (un-related) results, so you need to select the required one.

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