I am looking for a sample of web traffic or click stream data set, please let me know sources from where I can get the sample data?
Maybe check out this dataset on Quandl from Singularity? https://www.quandl.com/data/SNGLRTY/INTERNET_DATA_TRAFFIC-Internet-Data-Traffic
The original source of the dataset is: http://www.singularity.com/charts/page80.html
Hope this helps you get started.
[Disclosure: I work for Quandl]