Research briefings (Standard Notes, Research Papers, POST Notes, etc) can be found on the intranet. This is a massive resource and it is constantly updated.

For those without access to the parliamentary intranet, many of these are also available on the public Parliament website here: http://www.parliament.uk/business/publications/research/briefing-papers/.

The advantage of using the intranet link is that it lists the subject specialists in case you need to consult them for further information.