Hi I run 4 websites, 3 of which are part of my business and one of which I am running as a non-profit site. i have registered for AdSense as an individual and am running ads on my non-profit site - could i also run ads on from the same account on my e-commerce sites or would i need to register a new AdSense account? thanks!
No need creat another account. there are channel feature for you. Custom vs. URL channels use both channel feature you can track how much money you make.
Simply paste your Adsense code to your ecommerce sites. It is allowed to do so. Ads will then be displayed on these sites, and Google will review them later.
but the e-commerce sites sell items from a registered Limited company, surely to run ads on them i would need to have registered as a business :S