| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| project gutenberg free ebooks library | 0.42 | 1 | 9813 | 29 |
| free books project gutenberg | 1.08 | 0.9 | 4904 | 58 |
| project gutenberg online library | 0.33 | 0.4 | 5422 | 60 |
| read free books project gutenberg | 0.67 | 0.2 | 7899 | 100 |
| free books online project gutenberg | 1.88 | 0.3 | 8433 | 12 |
| free downloadable books on project gutenberg | 0.81 | 1 | 1808 | 16 |
| project gutenberg free pdf books | 0.42 | 0.1 | 552 | 55 |
| the project gutenberg ebook | 1.96 | 0.5 | 1936 | 73 |
| free ebooks project gutenberg | 1.8 | 1 | 9314 | 94 |
| project gutenberg free kindle books | 0.85 | 0.1 | 7553 | 61 |
| project gutenberg free books download | 0.2 | 0.3 | 7076 | 28 |
| project gutenberg australia free books | 0.68 | 0.6 | 1621 | 82 |
| gutenberg project free books online | 1.69 | 0.5 | 6218 | 71 |
