Fix ads. I think there is a need for a product that allows websites to self-manage their ads, allowing them to handle display, tracking, payment, and client management internally. Imagine being able to get rid of all the third-party ad and tracking scripts on your website in favor of hosting and managing all of it on your own domain, displaying ads that are guaranteed to be relevant and attractive (since you chose th…
There are a couple of drawbacks. First, it turns out that there's not much money to be made developing that software. Second, it turns out that running it is a lot of work, to the point that it's not worth it for most people. Third, most ad buyers don't want to juggle dozens of small publishers, they want centralization.