Separate note on the Indian site
Man, that ping sounds on the IM might be the single most annoying thing Ive seen on a site in while. Not sure its bad enough to have people bail if they like the content, but we found NO difference on the clicks to IM banners when we turned all sound off. In fact (and every site is different) when we didn't have it pop on EVERY page, it did much better. Im guessing it just felt more real. But , who knows, every site is different. Everything is worth A/B testing though