doi.bio/ads

About these links

The narrow column on the right of every doi.bio page is a list of tiny links to other doi.bio pages: things used in the paper you're reading, things people picked by hand, and rabbit holes worth following. Every link opens a doi.bio page, never another site directly, so anything in the column is safe to click. The doi.bio page is where you'll find the official site.

What the styles mean

• plain: used in this paper, or part of this page (the maker of a product, similar products)
• italic: handpicked
• dotted underline: found by the algorithm (related pages, rabbit holes)
• bold: sponsored, a company paid for the link. Sponsored links only appear where they are relevant to the page, and paying more can't put an irrelevant one there.

Hover over a link for a short card about it.

Privacy

We count clicks on these links so sponsors can be billed per click. We do it without cookies and without storing anything in your browser. We never store your IP address. To tell a repeat click from a new one, we keep a one-way hash of your IP address, browser name and a secret that changes every day; the old secret is deleted each day, so the hash can't follow anyone from one day to the next. Sponsors only ever see totals.