Microsoft CEO Steve Ballmer stated in 2001 that "open source is not available to commercial companies. The way the license is written, if you use any open-source software, you have to make the rest of your software open source."[55] This misunderstanding is based on a requirement of copyleft licenses (like the GPL) that if one distributes modified versions of software, they must release the source and use the same license. This requirement does not extend to other software from the same developer. The claim of incompatibility between commercial companies and Free Software is also a misunderstanding. There are several large companies, e.g. Red Hat and IBM, which do substantial commercial business in the development of Free Software.
Facebook Messenger is built right into the interface on Facebook on the Web, so you can use it without doing anything special. But downloading the mobile clients or using the dedicated Web interface at opens up lots of other options, from voice and video calls, to SMS texting support, to use of stickers, to, perhaps the best part, chatbots that will talk to you and provide info. Like its brother, WhatsApp, it also has a billion users.
Free software or libre software[1][2] is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions.[3][4][5][6][7] Free software is a matter of liberty, not price: users—individually or in cooperation with computer programmers—are free to do what they want with their copies of a free software (including profiting from them) regardless of how much is paid to obtain the program.[8][2] Computer programs are deemed free insofar as they give users (not just the developer) ultimate control over the first, thereby allowing them to control what their devices are programmed to do.[5][9]
If you don't know or care what a media server is—you just want to stream your videos and music collection around the house—Plex is probably for you. Install it on all your devices, point it at some media, and the media is available on all of them—even remotely over the internet. Plex plans to implement a cloud-based server option on Dropbox, Google Drive, and OneDrive, so you can stream from the Web. 

Vuze, which integrates torrent uploads/downloads with a media server option, comes in two flavors now. The free Leap is lightweight, has no ads, but lacks a Linux version. The regular free Vuze is ad-supported, but has lots more features like remote control via the web or mobile apps. It's nice software but watch the installations—even the Web page will itself will try to get you to install a new search engine. Twice.
Email list building can be a drag, unless you use lead magnets. These are free offers of valuable content that you give away in exchange for someone’s contact information. This can be free guide, PDF, template, coupon or free consultation, to name a few examples. Just make sure it’s something your target audience would really value and benefit from.
Most of us who work in sales, spend our time educating ourselves with books, programs and coaches. We get all badass at sales and then face the ultimate problem: no one to sell to. I’ll show you nine ways you can get free leads from sites like Facebook, LinkedIn, Twitter and any other social media site. Social media leads are the best leads there are. They are ready, real and easily engaged. 
Play the "Webquiz" to request a free sample of Nikwax Down Wash Direct, which is a "high performance cleaner for both regular and hydrophobic down filled items." You can repeat the quiz as many times as you want and you can win a maximum of one free product per household every two months. The Webquiz is open to those aged 18 and over. Offer is open to residents in the U.S., U.K., Canada, Germany, Switzerland, Austria, Denmark, Netherlands, Belgium, Luxembourg and Poland.