Almost every post will have some form of affiliate links within them for ingredients, supplies, or other reference materials associated with the post. (tattooedmartha.com)
We have two sets of encyclopedias and yearbooks and a few other reference materials, which is sufficient. (firstthings.com)
While Inkling has made a name for itself in both revolutionizing and the pricing of digital textbooks, the technology they've developed is also lending itself to other reference materials like Frommer's travel guides, making the iPhone the ideal tool for carrying on the go. (goodereader.com)