Google built Hangouts into its services as a replacement for the Google Talk messaging service, but Hangouts adds voice and video calls. It's unique for this roundup in that it doesn't require an installer, it just works in your browser (though getting the Chrome Extension is recommended). It's perfect for talking to other people on Google—you can get up to nine people in a video chat, all for free.
Notes created in this simple but powerful app are automatically stored online (you need a Simplenote account to use it). Multiple versions of notes are saved when changes are made, in case you need an old copy. It supports markdown for formatting text a little better, but best of all works with a lot of top-flight downloadable desktop note-taking tools like ResophNotes for Windows and Notational Velocity for the Mac.
The freedom to redistribute copies must include binary or executable forms of the program, as well as source code, for both modified and unmodified versions. (Distributing programs in runnable form is necessary for conveniently installable free operating systems.) It is OK if there is no way to produce a binary or executable form for a certain program (since some languages don't support that feature), but you must have the freedom to redistribute such forms should you find or develop a way to make them.
Free sales leads are found through your basic lead generation tactics. You can work to generate new leads through social media, by creating new content or even by working to improve the visibility of your site on search engines. Working to optimize your site and continue to perfect it you can improve your SEO and find more interested incoming sales prospects.
Standard and Poor's is one of the most prestigious companies in the world. If you are familiar with the U.S. stock market, then you know that the company publishes the S&P 500, an index of the 500 most promising large publicly-traded companies in various industries. Standard and Poor's also rates and provides indices for smaller companies. The company's reports focus on financial information and credit ratings and can be very useful in tracking down leads in the financial sector.