| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| project gutenberg audio books free | 0.26 | 0.4 | 6981 | 17 |
| project gutenberg audio books | 0.7 | 0.7 | 3628 | 60 |
| gutenberg project audio books free download | 0.7 | 0.8 | 5875 | 10 |
| free audio books online project gutenberg | 1.51 | 0.3 | 5688 | 77 |
| gutenberg free audio books | 0.02 | 0.6 | 4434 | 74 |
| gutenberg audio books free download | 0.42 | 0.8 | 4401 | 30 |
| free audiobook websites project gutenberg | 1.49 | 0.8 | 2126 | 63 |
| free downloadable books on project gutenberg | 0.07 | 0.4 | 3643 | 13 |
| project gutenberg free books download | 0.38 | 0.6 | 871 | 100 |
| the gutenberg project free books | 1.71 | 0.7 | 2175 | 64 |
| read free books project gutenberg | 0.32 | 1 | 5064 | 95 |
| gutenberg project free books online | 0.33 | 0.9 | 5600 | 97 |
| downloadable books on project gutenberg | 0.93 | 0.4 | 7092 | 46 |
| project gutenberg download all books | 1.02 | 0.5 | 4610 | 65 |
| project gutenberg open audiobook collection | 1.25 | 0.3 | 249 | 89 |
