I'll list three kinds of ethnical advertising: 1. If I have an interest in a field (say, electronics) and then I attend a conference or gathering that's releva

I'll list three kinds of ethnical advertising: 1. If I have an interest in a field (say, electronics) and then I attend a conference or gathering that's relevant to that field (say, CES), and then you buy a booth at that conference in order to hawk your wares, that's A-OK. The crucial difference is that I willingly understand the context--I'm going to be going to a place that's all about having people sell me things--and that advertisers are not running roughshod over a space where they don't belong. Consider this "pull-based" advertising rather than the "push-based" advertising where ads get shoved in your face every second of the day everywhere you go, even when you're just trying to live your life. 2. Organic word-of-mouth referrals. In an online, AI-infested world, the "organic" part is increasingly hard to come by, but if someone that I trusts tells me that a product is good, that's great and welcome. Crucially, their reputation with me is on the line if they turn out to be wrong or financially compromised. 3. Simple indication of presence. If you have a shop, you're allowed to have a sign on the front with the name of your shop... within reason. Don't push it. Billboards should be banned.