IT support information resource

Hi all

We are setting up a client support helpdesk
We will provide our customers with general IT support, e.g microsoft office, OS and general network connectivity support.
(explain what patches they need to stay current, general advice, etc etc)

There seems to be so much information available on the web that could benifit any helpdesk agent if they had time to read it all.

I am trying to find something simple, a resource that has most of the the general day to day problems and solutions listed. e.g top 50 general help desk calls this week type of thing…

Anyone able to point me in the right direction ?

Thanks
George