Something to always watch for: crapware installers. To make ends meet, many creators of otherwise great free software, or the services that offer the programs for download, bundle in things you don't want. Worse, the installation routine obfuscates the steps, so you provide the unwanted program tacit permission to be installed. For more about how to spot and avoid this problem, see How to Clean Crapware From a New PC, and check out the Uninstaller section of this very free software collection.
Thus, free software means that computer users have the freedom to cooperate with whom they choose, and to control the software they use. To summarize this into a remark distinguishing libre (freedom) software from gratis (zero price) software, the Free Software Foundation says: "Free software is a matter of liberty, not price. To understand the concept, you should think of 'free' as in 'free speech', not as in 'free beer'".[22] See Gratis versus libre.
Adobe created the PDF format, so it stands to reason it would still offer a pretty kick-ass free PDF reader, albeit one that's not as full-featured as some others, since it has other tools it wants to sell you. (The DC stands for Document Cloud, Adobe's attempt to get you to store everything online via Adobe.) Using it, you can easily annotate or sign PDFs, fill out forms, or even save a PDF to Word or TXT format.
While most hard-copy business directories are located in the Reference section of the public library, you should still ask your Reference librarian which databases they carry and where to find them. If your local library doesn't have the directory you need, then place a request with the librarian because very often the librarian will be able to subscribe to the source you're looking for. Many libraries have computers set up so that patrons like you can go online if you prefer the electronic version. That said, not all of these databases have been converted to e-versions. 
Many people new to free software find themselves confused because the word "free" in the term "free software" is not used the way they expect. To them free means "at no cost". An English dictionary lists almost twenty different meanings for "free". Only one of them is "at no cost". The rest refer to liberty and lack of constraint. When we speak of Free Software, we mean freedom, not price.
Gale is an e-research tool offered by Cengage Learning. It's designed mainly for schools and educational research, but can be quite helpful in generating sales lead lists as well. Gale publishes over 600 databases, both in hard copy and online. These databases include both business information and collections of articles on various subjects. The article lists are particularly useful when you're collecting lists of publications related to your industry.
I have this belief. I’ve run my entire business on this one belief. I believe that everyone can be a good salesperson if they can find the right thing to sell and the right people to sell to. Selling is actually the easy part of our job, but we spend 99 percent of our time prospecting and not selling. Getting quality leads isn’t easy. Salespeople who can generate their own leads can write their own paychecks. For as much as they want.
Proprietary software uses restrictive software licences or EULAs and usually does not provide users with the source code. Users are thus legally or technically prevented from changing the software, and this results on reliance on the publisher to provide updates, help, and support. (See also vendor lock-in and abandonware). Users often may not reverse engineer, modify, or redistribute proprietary software.[15][16] Beyond copyright law, contracts and lack of source code; there could be additional shenanigans keeping users from exercising freedom over a piece of software, such as software patents and digital rights management (more specifically, tivoization).[17]
The right to study and modify a computer program entails that source code—the preferred format for making changes—be made available to users of that program. While this is often called 'access to source code' or 'public availability', the Free Software Foundation recommends against thinking in those terms,[10] because it might give the impression that users have an obligation (as opposed to a right) to give non-users a copy of the program.
The economic viability of free software has been recognized by large corporations such as IBM, Red Hat, and Sun Microsystems.[63][64][65][66][67] Many companies whose core business is not in the IT sector choose free software for their Internet information and sales sites, due to the lower initial capital investment and ability to freely customize the application packages. Most companies in the software business include free software in their commercial products if the licenses allow that.[18]
The expansion of online marketing with regards to promotional giveaways has facilitated the rise of "Freebie sites" that seek to aggregate all promotional free sample offers in one place. These sites will often compile free product samples from all over the World Wide Web and categorize them by type. Some product sample offers may require consumers to complete a survey or refer a friend in order to qualify for the freebies. When all requirements are fulfilled, the product samples are shipped to the consumer. Some sample products might be digital goods, where sample might be closely related to a product trial.