Back in the early days of my foray into skepticism, I found a Chrome plugin called FishBarrel (opens new window) which makes it easy to gather data from a nonsense website and submit a complaint to the relevant regulatory body.
Unfortunately, since then, New Zealand's Advertising Standards Authority has revamped their website. I really should create an update for the plugin.
One thing I learned from this project is that it's actually pretty easy to write a Chrome plugin. Since then I've created a Chrome plugin from scratch for a friend's company, and was pleasantly surprised how few lines of code it took.