Search for KBs and new product support

I am trying to find all OS X 10.7 (Lion) Apple KB articles that were release/updated on or after 07/20/2011. Is there an end user accessible way to browse just the KB articles?

I have noticed that many Apple web site pick list have not been updated to reflect the Lion product. Any observations of how long these updates have taken for past Mac OS or other product release? Is there anything we can do to assist?