Search has evolved significantly in the last couple of years and paid search seems to have become a viable business model in addition to advertising based business models.<p>Yet, there seems to be very limited exploration of alternative revenue models such as bundling search with other (paid) features or products. We are building a curated search engine for startups (https://www.symonda.com) and we want to better understand why this is the case.<p>Why is there limited innovation in search revenue models and what do you think the future revenue models for custom/curated search engines are?
There might be good money in finding email addresses. <a href="https://hunter.io/pricing" rel="nofollow noreferrer">https://hunter.io/pricing</a> has a model of 25 free searches, then paying. Personally I never had the need to find startups.