Marketing your small business can be a tough job. Sometimes you need a boost of inspiration to “refill the well,” as creativity coach Julia Cameron would say.

Over the years, I’ve picked up some much-needed inspiration–and learned a ton–from free ebooks and PDF guides. I’ve compiled a list of some of  my favorites.

Advice on Building Your Confidence Muscles. To celebrate the launch of her new business, Ana Ottman asked her favorite female entrepreneurs: “What advice would you give to women business owners that want to build their confidence muscles (and generally rock at what they do)?” She includes their answers in this free ebook.

FUEL: 11 Passionate Voices Empowering You to Launch Yourself. David Trotter collected 11 conversations from Launch52tv and transcribed them into this free ebook featuring Jennifer Louden, Colleen Wainwright and other creative entrepreneurs.

Business Heart Toolkit. Mark Silver’s Business Heart Toolkit is actually three free resources – two workbooks and an MP3 – to help you get to the heart of your business. I recommend subscribing to the newsletter to receive a fourth workbook, and more helpful resources.

Why Do Most Headlines Fail? You’ll need to sign up for Sean DeSouza’s free email newsletter to receive this PDF report, but I highly recommend you do. Sean offers a wealth of powerful ideas and inspiration about small business marketing.

Spacious Goals Guide and Workbook. Hate setting goals? Love setting goals but have trouble meeting them? Either way, this free ebook from Tara Gentile of Scoutie Girl is for you.

What free marketing resources do YOU enjoy? Return the favor – give their creators some free marketing by letting me know in the comments section below.