Unfortunately it seems,
that many content has been lost by the migration from SDN to SCN.
Also many Coding Examples are destroyed - at least the format of the content.
Hopefully they find a way to bring back all the informations.
Try this link - here you may find some of the things you are searching for:
Hi Muralidhar...please go to the CRM space ( http://scn.sap.com/community/crm ) > Content tab > here, you'll see "documents" (all articles, whitepapers, etc), "blogs", and "discussions" (what used to be called "forums").