It took me a while to find something decent for this post - the first two databases that could have been of use were subscription only and then I came across a lot of videos on Youtube of people trying to sell their 'research methods' books through viral. The search certainly prove to me that finding useable information online can be rather tricky.
Finding a photo of a cat at a computer was surprisingly easier but unless you're doing your research on cats in the media that is not going to help.
This website may help though- Official Documents. The website hosts all the command and departmentally sponsored House of Commons papers from 2005 onwards. Command papers are basically papers which have been presented to parliament by 'Command of Her Majesty'.
Since I am going to be looking at the Bailey Report during my research that was the first item I searched for and found a copy of the full report. The search facility on the site is straight forward enough - you can either you type keywords into the search box or if you cannot find what you are searching for that way you can do a more thorough search through selecting a year. The results can also be organised by - 'Relevance', 'Title', 'Paper type', 'Department' and 'Date'. The search facility will also identify other words that may aid your search which may also in turn help you with words to search when looking for other material.
However although the above site may be useful due to us being media students the 'Department for Culture, Media and Sport' (DCMS) may be of more relevance to most of us. The department are involved in a huge range of activities but their main aim is: "...to improve the quality of life for all through cultural and sporting activities, to support the pursuit of excellence and to champion the tourism, creative and leisure industries".
Like the official documents site it has a ton of information but most importantly both sites are credible sources. A good way to check the credibility of your sources as suggested by Richmond University (2001) is to use The CARS Checklist - Credible, Accurate, Reasonable and Support. If your source meets the rules above then you can feel assured that is acceptable to use.