I am sending you some pdf files alongwith their links.Hope it may be of some help to you.
1.Public Engagement with Research Online:Evaluating the impact of research online with Google Analytics. available athttp://www2.warwick.ac.uk/fac/soc/sociology/staff/jensen/ericjensen/pero/pero-google-analytics-guide-v4.pdf
2.ANALYZING THE IMPACT OF VISITORS ON PAGE VIEWS WITH GOOGLE ANALYTICS athttp://arxiv.org/pdf/1102.0735.pdf
3.How to Use Google Analytics Site Search Reports athttps://searchenginewatch.com/sew/how-to/2346116/how-to-use-google-analytics-site-search-reports
4.Using Google Analytics Data to Expand Discovery and Use of Digital Archival Content at http://practicaltechnologyforarchives.org/issue1_szajewski/
Thank you so much. I think that will be very helpful. Although I would like to know which words users use search engines on the Internet when seeking NGOs and NGOs which words to use to position their searches.
Am not sure if this answers your question but I did a longitudinal study of web traffic to an NGO (Nelson Mandela Foundation) see Article The Mandela Portal – an assessment of global visitors using ...
as well as an earlier study on how web visitors search and find the website of the particular NGO see
Article The Mandela Portal - how do visitors get there?