The Free Software Foundation encourages selling free software. As the Foundation has written, "distributing free software is an opportunity to raise funds for development. Don't waste it!".[53] For example, the FSF's own recommended license (the GNU GPL) states that "[you] may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee."[54]

Since free software may be freely redistributed, it is generally available at little or no fee. Free software business models are usually based on adding value such as customization, accompanying hardware, support, training, integration, or certification.[18] Exceptions exist however, where the user is charged to obtain a copy of the free application itself.[51]
There are thousands of free applications and many operating systems available on the Internet. Users can easily download and install those applications via a package manager that comes included with most Linux distributions. The Free Software Directory maintains a large database of free software packages. Some of the best-known examples include the Linux kernel, the BSD and Linux operating systems, the GNU Compiler Collection and C library; the MySQL relational database; the Apache web server; and the Sendmail mail transport agent. Other influential examples include the Emacs text editor; the GIMP raster drawing and image editor; the X Window System graphical-display system; the LibreOffice office suite; and the TeX and LaTeX typesetting systems.
New technology sets the trend in the market. For example, smartphones are trending all over the world. Subsequently, most people access their mail or browse websites through smartphones or tablets; this shows that the you should invest in making your marketing efforts compatible with these devices, allowing you to reach the maximum amount of customers.

Free software played a significant part in the development of the Internet, the World Wide Web and the infrastructure of dot-com companies.[58][59] 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.[60]

When the European Commission started dealing with Free Software on a regular basis, they sought to avoid the ambiguity of the English word "Free Software" and the misunderstandings of "Open Source" alike, which led to the adoption of a third term which has popped up occasionally since around 1992: "Libre Software." This term has proven resistant to inflationary usage and is still used in an identical way to Free Software. So it may pose a solution for those who fear being misunderstood when speaking English.

But as for the leads you work to gain yourself through your own marketing efforts, or with the help of software to reach out to, these are called free sales leads. These leads are the ones you have found on your own, and they may or may not be successful for you. It all depends on the sales lead and your marketing tactics to convert the lead. You might not have the added reassurance of interest from the bought leads, but these raw leads can still prove to be successful.
Content marketing seemed like a viable option only a few years ago to help businesses grow their databases. However, research shows that engagement is getting harder to keep and that a small minority of content online is responsible for the majority of social media shares. If a marketer wants to make content marketing work for their business, they need to produce exceptional content. 
Freeflys: Another strong contender in the freebies space, Freeflys has appeared on NBC’s Today Show, The Doctors, Fox News and a handful of other media outlets. Similar to most of these sites, Freeflys utilizes email alerts to tell users about free-sample offers as they happen. The site also allows you to search for a specific product with the handy search bar.