ExclusionSites.com: Free website exclusions lists for display ads & retargeting

Hi everyone! I made this app because during 15 years managing paid media and running marketing teams at well-known brands, I was really shocked to see some of the sites and content alongside paid display ads. Manually protecting the brand would take dozens of hours every month (or thousands of dollars if hired through an agency), so I started by initially crowdsourcing exclusion lists suggested by friends in the industry. Realizing this would need to be an ongoing process, and that it's not uncommon for brands to have 100,000 or more exclusion websites, I invested in a solution to build an ever-growing exclusion database as well as software to easily categorize and manage those exclusions. Maybe best of all of you - it's completely free.