| Similarity | Rank | |
|---|---|---|
| subscription-based | 0.802 | 76374 |
| internet-based | 0.759 | 48911 |
| brick-and-mortar | 0.751 | 41427 |
| print-on-demand | 0.724 | 98119 |
| Internet-based | 0.715 | 44397 |
| ad-supported | 0.709 | 97539 |
| fee-based | 0.707 | 68578 |
| on-line | 0.690 | 5612 |
| e-books | 0.686 | 23923 |
| subscription | 0.684 | 6905 |
| publishers | 0.683 | 7379 |
| Web-based | 0.682 | 27629 |
| online | 0.679 | 220 |
| web-based | 0.679 | 12271 |
| subscriptions | 0.671 | 16668 |
| paid-for | 0.671 | 83266 |
| offline | 0.665 | 8773 |
| bricks-and-mortar | 0.664 | 81335 |
| free-to-play | 0.659 | 57582 |
| freemium | 0.658 | 77866 |
| open-access | 0.654 | 85927 |
| self-publishing | 0.649 | 39216 |
| publishers' | 0.648 | 93517 |
| Amazon.com | 0.644 | 16263 |
| bookstores | 0.640 | 23119 |