Online learning can be a game-changer, especially with flexible options like podcasts, blogs, and online communities that cater to busy professionals. For instance, platforms like Coursera, edX, and LinkedIn Learning offer affordable courses from top institutions, while tools like Pocket and Instapaper help you absorb content on-the-go. Don't forget about podcasts, such as TED Talks Daily and How I Built This, which pack a powerful punch of knowledge and inspiration.