I recently gave a talk at PyData Edinburgh about some of the work I am doing at QueryClick. We investigated the effectiveness of TV and Radio advertising in driving traffic to websites. We found something surprising. The effectiveness of Radio advertising was negligible for our client. Fortunately TV advertising was much more promising. The full talk can be found on the Pydata Edinburgh Github.
If you live in Edinburgh and enjoy technical talks about data I can really recommend Pydata. You could also check out TechMeetup Edinburgh which I help to run. TechMeetup has talks about a wider range of tech subjects.