TheGrue.org is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
In plain English: when an article here links to a product on Amazon — a book, a gadget, a piece of hardware we mention in a tutorial — and you buy it through that link, Amazon pays us a small referral fee. The price you pay is exactly the same as if you had found the product on Amazon yourself.
We only link to products that are genuinely relevant to the article you're reading, and the fee never influences what we recommend. For the full picture of how this site is monetized, see our FTC Disclosure.