| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the gutenberg project audio books | 0.89 | 0.3 | 8443 | 1 |
| gutenberg free audio books | 0.54 | 0.1 | 9022 | 37 |
| gutenberg audio books free download | 0.68 | 0.8 | 5660 | 10 |
| project gutenberg audio book | 1.47 | 0.6 | 2162 | 22 |
| microsoft gutenberg audio books | 0.77 | 0.6 | 7191 | 20 |
| free books online project gutenberg | 1.63 | 0.5 | 5526 | 78 |
| books online free to read project gutenberg | 0.98 | 0.7 | 5723 | 86 |
| read free books project gutenberg | 1.68 | 0.9 | 70 | 73 |
| project gutenberg open audiobook collection | 0.6 | 0.5 | 4679 | 32 |
| free books project gutenberg | 0.18 | 0.3 | 2288 | 49 |
| free book sites project gutenberg | 1.97 | 0.2 | 7877 | 42 |
| gutenberg project books online | 1.31 | 0.3 | 4468 | 54 |
| project gutenberg audio books free | 0.51 | 0.2 | 110 | 22 |
| best audio books on project gutenberg | 1.83 | 0.9 | 4217 | 39 |
| free audio books online project gutenberg | 0.91 | 0.9 | 1760 | 37 |
| gutenberg project audio books free download | 1.47 | 1 | 6984 | 92 |
| project gutenberg audio books | 0.74 | 0.4 | 2899 | 70 |
