4 In-Demand Skills You Can Learn Online Online resources can help you learn and earn more.

High costs of college tuition and the growing abundance of online resources to learn about topics from computer science to blockchains have created an unprecedented opportunity for self-taught professionals and entrepreneurs. Consistently learning new skills and adapting to the evolving work environment is crucial to maintaining a fruitful career in today's workforce.

Many college graduates do not even work in the field that they majored in, and instead, work in an area that they initially received a job in out of college or taught themselves how to excel in. Whether you're looking to transition into another field or just want to learn some new skills as a hobby, the ability to do so has never been as convenient or powerful as it is now.

The increasing prominence of online education resources

In parallel to the proliferation of online educational resources is the explosive growth of freelancing. A 2017 study by Upwork revealed that freelancers are predicted to become the majority of the workforce within the decade. Many freelancers and entrepreneurs are self-taught, learning new skills on the fly out of a need to develop a professional talent or by meticulously studying a topic through online classes or reading.

Related: 15 of the Best and Most Unusual Online Courses for Entrepreneurs

The progression of the internet into its modern form has opened avenues for extensive, user-friendly, and affordable educational material for users of all levels of experience. Online resources for enhancing professional skills range from free university courses to standalone educational platforms that connect students and paid professionals. Some even offer informative games, impressive video tutorials and open-source frameworks for improving content.

Here are four areas in which you develop skills and learn more about online.

1. Coding and software development

I taught myself the basics of computer programming in a prison cell by reading textbooks and using a number two pencil, without internet access. I know computer science can be intimidating for someone not familiar with the topic since it is often viewed as having an exceptionally high barrier to entry and robust prerequisite skills in mathematics. Thankfully, numerous educational materials are available for users of all experience levels to learn about how computers work and how to program.

These resources are not just relegated to proprietary online platforms either. MIT OpenCourseWare offers undergraduate and graduate courses on computer science -- among other topics -- online for free.

Platforms such as KhanAcademy, Coursera, and Udemy all provide their own courses on software development, computer science and other related topics. The material may be intimidating at first, but the classes are comprehensive and tailored to students of all talents with video tutorials, walk-through problems, projects and connections to top educators.

2. Languages

Learning new languages becomes more challenging as you get older, but the sheer amount of content and material available to learn new languages today is perhaps the best representation of online education's progression. Services such as Rosetta Stone are established and popular among many people, but numerous other services have also arisen.

Internet Polyglot offers courses on 21 different languages, Live Lingua is an entirely free full-immersion language course platform and mobile apps such as Duolingo and Busuu have skyrocketed to the top of the app download charts. The ability to speak multiple languages is not only helpful if you live in a foreign country or are traveling, but is a net positive for your resume that can even bolster your salary.

Related: Get Smarter About Business Cheaper With These 10 Free Online Courses

3. Healthcare and medicine

Similar to computer science, healthcare and medicine are primarily viewed through the prism of an exceedingly high barrier to entry. However, the notion that you can be successful in the medical industry solely with a doctorate is fading.

Online platforms such as Khan Academy and Coursera offer some in-depth material on life sciences, sports medicine and anatomy. Although they won't provide the necessary material for becoming a doctor, they can help launch your career in the field or provide up-to-date content for you to refine your knowledge.

The prevalence of online education in fields including pharmaceutical medicine, healthcare project management and public health are also increasing. Once challenging areas of study to access are now widely available through platforms such as Class Central that aggregate resources from the top online universities in several fields. Subjects available in healthcare and medicine include clinical statistics and research, nutrition and epidemiology.

4. Blockchain

Blockchain and cryptocurrency exploded into the mainstream following the meteoric rise of the price of Bitcoin at the end of 2017. Despite the relative decline in prices over the past year, interest in the blossoming industry persists. Moreover, resources have transformed from obscure open-source Github repos to comprehensive courses on everything from understanding the underlying protocols to programming smart contracts. The demand for blockchain experts has officially exceeded supply, as reported by BTC Manager. That means, despite the volatility of the market, there's still a huge market opportunity for anyone wanting to develop their skills.

Kingsland University - School of Blockchain was the winner of the 2018 Stevie Award in the Innovator of the Year category that offers a highly touted and extensive suite of blockchain programming curriculum. Programs like those provided by Kingsland University were few and far between in the early days of blockchain technology, but now are vital to onboarding new industry participants and facilitating the transition of many programmers to the blockchain space. With industry partnerships -- such as their recent one with the Tezos Foundation -- Kingsland will be creating the much-needed talent pool that will drive future innovation and growth. They've recognized the crucial role education plays and they are getting out into the community and providing scholarships for career building education, with a nearly guaranteed job at the end of the training.

Related: Why Your Business Assets Belong on the Blockchain

Other resources for learning more about blockchain and cryptocurrency are Blockchain at Berkley and Udacity's Nanodegree program on blockchain development. With the technology still in its early stages and blockchain developer salaries among the highest out of any industry, the opportunity to earn a lucrative income has never been so widely available.

The internet has created unprecedented educational opportunities for anyone with an internet connection. Previously restricted and highly exclusive material is now available for free to virtually everyone. For entrepreneurs and freelancers, online resources are crucial to gaining professional insights and building a foundation to advance their careers. I dedicate one hour per day to learning something new and even have it as a calendar event on my schedule to make sure I hit my daily goal. It's so much easier to learn now that all of my notes don't have to be scribbled down in a notepad using a number two golf pencil.