Free software played a significant part in the development of the Internet, the World Wide Web and the infrastructure of dot-com companies. Free software allows users to cooperate in enhancing and refining the programs they use; free software is a pure public good rather than a private good. Companies that contribute to free software increase commercial innovation.
Your local library isn't just a place you go to find a new novel without paying for it. Libraries subscribe to a number of different business directories, which makes them a perfect place to get leads for free —especially for B2B salespeople. These directories aren't limited to resources like Internet reverse lookups, although such a tool can be very useful if you're looking for business leads. Many companies make it their business to organize information about both the company and their consumers. This information is compiled into a huge database, and this database is pure gold for any salesperson looking to create a new lead list.
Most free software licenses are based on copyright, and there are limits on what kinds of requirements can be imposed through copyright. If a copyright-based license respects freedom in the ways described above, it is unlikely to have some other sort of problem that we never anticipated (though this does happen occasionally). However, some free software licenses are based on contracts, and contracts can impose a much larger range of possible restrictions. That means there are many possible ways such a license could be unacceptably restrictive and nonfree.
How you work to generate new leads for your business is up to you. You can use lead management and lead generation software to help you reach new prospects, you can work to improve your marketing efforts by yourself, or you can take an entirely different route: you could pay for new leads. Buying leads is actually a thing. You can pay for the contact information and related data of interested individuals that may hold potential for investing in your company. It sounds like cheating, but it could be an easy way to gain new potential customers.
It's not super popular in the US and not even our favorite messaging app, but you can't ignore the 800-pound messaging gorilla that is WhatsApp—since it was purchased by Facebook for almost $20 billion and it has over a billion users worldwide. It offers end-to-end encryption, has animated GIF support, group chat for up to 256 people, document sharing, voice and video calls, one-tap voice messages, and a Web-based interface you access by scanning a QR code with the app on your mobile device. It recently added macOS and Windows desktop versions.