Scraping data for profit.

A couple weeks ago I posted about how I “aggregated” business listing data from Yelp, and then found emails for real estate brokers and did a small cold-email campaign, which got decent responses.

But, then I realized a lot of professional services and B2B niches (lawyers, doctors, accountants, etc...) publish their emails on their websites. This allowed me to build a pretty massive industry-specific contact/email database.

Now I built that into its own product at https://sumolists.com. Check it out if you need to build your contacts/email list for a specific industry or niche.