I like things that can be / are sold locally. Think clothes, cars, furniture, tools, building supplies, and a million other things. Then you can get them listed properly in Google/Bing local, Yell, Cylex, FreeIndex and so on. And straight off the bat that gives you a solid base to build on in the search engines. In fact, I've built multiple, very successful, businesses from scratch just by setting everything up properly in the local business directories and with no other marketing at all. My brother and I run a building company that employs 6 people now and all we did there was get listed properly in the local directories. No social media, no SEO, no paid advertising, nothing. Let me give you an example... We've got a local paint supplier who only set up a couple of years ago. They've got premises, overheads, advertising costs etc. etc. But their SE listings are crap and if I spent a week just setting up my own "The Local Paint Supplier" website and doing all of the online stuff right from the outset I'd outrank them and anyone searching in my local area, and beyond, would find me before them. Zero costs involved, just time, and no-one cares if it's an affiliate site or a dropshipping store - because it looks like a real company - not even Google can tell the difference, well, not without some manual intervention. That's the way I've been thinking about from day one and my first store is on target to do roughly 500 sales in the first 3 months, so there might be some logic in it. I hear you about Google Shopping, but it's expensive and you're competing for sales with small margins already. Getting your products on Amazon would be great too - and it's easy, they even do everything for you - but everyone is taking their slice and a lot of these suppliers are only making 1-3% on an item that might sell for £100. Seriously. Less than affiliate commissions, but they're doing it in bulk, so there is that.