Yudu looks interesting. In their own words-
Explore the YUDU library to read online magazines, free eBooks and other digital content. Browse thousands of free digital magazines or buy your favourite titles in the YUDU Store. Self publish your own digital magazines, eBooks, digital brochures and more with our free publisher software.
Simply upload your PDFs and other documents to create search engine friendly page-turning publications that can be added to your website or sent out on email. Create your own personalised library to store and share your digital magazines and other content.
And here’s a sample of one of the magazines you can read for free. I usually find myself drawn to the hotrodding magazines on these e-publishing platforms.-