So i'm back after validating the idea 1 year ago, the V2 of theseolabs is a WebApp with 15 000 websites that accept guest posts. The pricing model is hybrid between subscription and one time payment : - Full Database access is a monthly membership to a Web Interface where you can search and filter the whole List of 15 000 sites that are accepting Guest Posts with seo metrics. This is best for Seo and Marketing pros who want to search differents categories often. - Single Category is a one time payment where you get a CSV with all the sites in a Category (« Marketing » for example). In the CSV there is all the Seo metrics, social media accounts, traffic etc… I was inspired by https://lagstack.com/ of @jakob_greenfeld for the first version and he has been on a product launch rampage since so go check him out. (I recontacted every user of the version 1 to give them access to 2.0, if i forgot anyone don't hesitate to reach out)