Whether looking for a new job, or hoping to climb the ladder at your current one, getting more training can help.

Yet the pricetag that often goes along with that process can be a huge stumbling block.

But there are some classes you can take online that will boost your resume and perhaps even your earning potential.

Many of the Massive Open Online Courses--often referred to by the acronym "MOOC"--are absolutely free.

Case Western Reserve University professor Michael Goldberg has been teaching a MOOC on entrepreneurship for two years.

He said the first step to enrolling in a course is simply finding one online.

“There are a number of different platforms where students can find MOOCs," he explained. "Coursera, which is the largest and the platform where my course is on, partners with universities. EdX is another platform, Udacity is another platform, so there are a variety of platforms that are out there."

Next, scan the open course offerings.

More than 400 universities, including high profile schools like Princeton and Harvard, offer nearly 4,000 courses

Topics range from astrophysics to architecture.

The majority of courses are free.

Others cost roughly $50-$100 in course fees, or ask students to purchase some type of completion credential.

While students don't actually earn a credit from the college themselves, those who complete a course can snag some type of accreditation from the online provider.

Goldberg said he’s seeing students share those certifications on their resumes or LinkedIn profiles

"I think what that shows employers is that these folks are taking those extra initiatives to continue to educate them on topics that are of interest to them," he said. "I think that can pay off."

Oberlin College graduate Laurie Pickard wanted an advanced business degree without the price tag or the traditional time constraints.

While working in international development in Rwanda, she said she’s spent less than $1,000 on what she says is an MBA-level curriculum.

“They’re there whenever you want them, so that ability to work a MOOC into your schedule in a way that you can’t really do in a class with a defined time that it’s running, that’s a real advantage," she said.

On the blog she launched to chronicle her journey to earn what she's tagged as a "No Pay MBA," Pickard has highlighted a few of the best ways to market your MOOC experiences to employers.

First, list relevant courses on your resume and LinkedIn profile.

Next, post work examples on a personal website.

And use your MOOC to connect with classmates around the world to build your global network.

Check out the offerings at these providers to find a MOOC that's right for you: