It doesn't matter whether you're Bill Gates or living just above the poverty line -- there is always something new to be learned about the world of finance.

One of the best ways to discover the latest information is to subscribe to email newsletters. Whether you want to increase your understanding of how the stock market works, learn how to budget more effectively, or read the best advice about financial planning, you'll always be able to find a publication that suits your needs.

Here are ten great personal finance newsletters you can check out to increase your finance knowledge.

1. Money Under 30

As the name suggests, the Money Under 30 website is primarily geared towards younger readers, but there are valuable tips for everyone.

Rather than being a weekly list of tips or big news stories, this newsletter takes the form of a course. Called "Money School," it aims to teach you how to pay off debt as fast as possible, save money effectively, earn more money, and invest with confidence.

2. Money Saving Expert

Note: This is a U.K.-centric newsletter.

This weekly email from Martin Lewis is all about saving money on your cost of living -- but that simplistic explanation doesn't do justice to the sheer amount of content you'll be receiving.

For example, in one of his recent weekly updates he included more than 100 supermarket coupons, a 60 percent satellite TV discount code, mortgage rate updates, energy rates advice, information about saving with a tax-free account, and a warning about travel insurance.

And this wasn't a one-off; this is the type of stuff you can expect to be delivered every week.

3. The New York Times -- Your Money

Sent out every Monday, the New York Times' personal finance newsletter is mainly focused around tips and advice, though some news is also included.

The website itself is divided into sections about investments, loans, financial planning, retirement, credit cards, and insurance, and these are the topics you can expect to receive the most attention.

Occasionally one of their journalists will also write an article exclusively for the newsletter.

4. Rockstar Finance

The world of finance can be a confusing and jargon-filled place -- the average person can't spend more than five minutes of reading The Financial Times before nodding off.

Rockstar Finance tries to change that, using clear explanations and layman's terms to make personal finance accessible to everyone.

Their newsletter is nothing flash, but it's highly effective. Every day you'll be sent the best articles on the site -- it will save you the effort of wading through pages of content just to find the juicy stuff.

5. The Daily Worth

The Daily Worth website is aimed at female readers. Its broad focus is money, but rather than framing it in a context of retirement, bonds, and interest rates, it instead looks at it from the standpoints of careers, identity, security, and relationships.

The site's daily newsletter is an amalgamation of articles on the sites, tips and advice, and learning resources.

There is also a weekly newsletter, though it's more focused on entrepreneurs. It includes expert advice, useful resources, and lots of inspiration.

6. Wisebread

Wisebread is a well-known personal finance website. Like some of the other sites on this list, it takes a more informal approach to its content, making it an easy and enjoyable read.

The newsletter, which is delivered weekly, is great for people who just want advice on the day-to-day challenges of spending less and saving more.

7. NerdWallet

The NerdWallet website specializes in comparisons and answering questions like "Which is the cheapest credit card for me?" or "Which mortgage rate should I sign up for?"

However, they also offer a section on investing, and with it, an investing newsletter. It's only delivered once each month, but that means it's easily digestible and not onerous. It's filled with insights, tools, and advice.

To give you an idea of what to expect, recent content has included titles such as "How to Invest for Any Goal" and "What Millennials Get Wrong About Retirement."

8/9. The Helpdesk and Ask the Expert

Ever had a personal finance question but not known who to ask or where to turn? That's where these two weekly newsletters come in. I've chosen to group them both together because they are both operated by news conglomerate CNN.

The Helpdesk is mainly focused on better ways to save and spend your money, while Ask the Expert operates like a question-and-answer session with readers. It's written and edited by Money Magazine's wonderful expert, Walter Updegrave.

10. MakeUseOf Finance Notifications

Okay, this isn't a newsletter in the truest sense, but did you know you can sign up to get an alert every time a new article is published in your favorite MUO sections?

Since launching a year ago, our Finance section has blossomed into a treasure trove of money tips. If you want to find out about personal finance software, have questions about the best financial podcasts, or simply want to save money on your tech, we've got you covered.

You can subscribe to the alerts by accessing your MakeUseOf profile and clicking on the Subscriptions tab.

Which Newsletters Do You Subscribe To?

There are innumerable personal finance newsletters to choose from; I've barely scratched the surface in this piece. Nonetheless, please do get in touch with your opinions. Did I miss your personal favorite? Have you found an undiscovered gem? Is there a niche topic you think everyone should read about?

I'd love to hear your recommendations! You can get in touch via the comments section below.