CEO Jeff Weiner's company has quietly launched what could become its next major revenue source. Getty Images

The ability to sell your products and services on LinkedIn is about to get a whole lot easier--and that's good news for everyone involved.

With 420 million members in over 200 countries, and adding two new members every second, LinkedIn is already one of the best places online to locate, engage, and sell your products and services to your ideal clients and customers.

But things are getting even better.

LinkedIn's New Move: ProFinder

LinkedIn recently (and quietly) launched its new "ProFinder" service, and it's quickly gaining momentum.

Modeled after popular "freelancer-for-hire" sites such as Fiverr and Upwork, LinkedIn's ProFinder matches customers looking for a specific type of product or service with a qualified professional.

Because of its treasure trove of user data, LinkedIn is able to quickly and easily show you the best prospects for a freelance project or ongoing service you need based on keywords, categories, or search terms you type into ProFinder.

LinkedIn can even filter search results based on your network (who you're already connected to at a first or second degree level), recommendations those professionals have, their physical location (if that matters), and more.

Some of the services you can find help with on LinkedIn's ProFinder right now include:

Accounting

Business Coaching/Consulting

Design

Insurance

IT Services

Legal

Marketing

Photography

Real Estate

Software Development

Writing and Editing

The list goes on, but you get the idea. And it's easy to see how this service becomes "win-win" for customers, vendors, and LinkedIn alike.

A "Revenue-Ready" Model

As of this writing, ProFinder is completely free to use for both customers and vendors.

LinkedIn could (eventually) make money by taking a cut of any financial transactions between parties (as Fiverr does), by charging service providers a fee to be featured more prominently in certain categories, or in a myriad of other ways.

The "win" for customers inside LinkedIn's ProFinder is that you can (ideally) find a higher caliber, more trustworthy professional than you might on various freelance sites, given the extra credibility and professionalism that comes with the LinkedIn experience.

For professionals looking to land more clients via LinkedIn, ProFinder is a potential godsend--it offers the ability to get direct, warm leads delivered into your inbox every day. It's a great "passive" lead generation method you can pair with daily, organic efforts to find and engage your ideal prospects on the network.

The Party's Started

LinkedIn is actively courting users to sign up for the program, and even provides tips on how to get noticed inside ProFinder.

It's a brilliant business move--one that opens up another new line of potential revenue for LinkedIn while adding even more value to the network for its users.

Most of all, it's yet another indication that LinkedIn remains poised to further dominate the professional networking world online. No other business-to-business, professionally-themed social network has the track record, power, user data, and membership growth that LinkedIn does.