Simon Dutton

For speed PPC (You'll be able to drive traffic quicker but will pay quite a lot and only really works well if you have the budget to experiment and optimise). In the long term SEO provides great ROI but requires consistency. I wouldn't view it as a one or the other scenario, they can work together very effectively.

I am a big fan of https://pitch.com/ - has loads of great templates for case studies etc.