| Discovering Computers Ch. 10 | 82 | September 26, 2010 |
| Discovering Computers Ch. 6 | 45 | September 19, 2010 |
| Discovering Computers Ch. 9 | 59 | September 19, 2010 |
| Discovering Computers: Ch. 7 | 46 | September 19, 2010 |
| Discovering Computers Ch. 4 | 61 | September 19, 2010 |
| Elements of Prose | 23 | June 11, 2008 |
| Elements of Poetry | 15 | June 11, 2008 |
| Figurative Language and Literary Terminology | 81 | June 11, 2008 |
| Geology Ch 20 | 63 | April 22, 2008 |
| Geology Ch 19 | 73 | April 22, 2008 |
| Geology Ch 18 | 43 | April 21, 2008 |
| Geology Ch 17 | 66 | April 20, 2008 |
| Geology Ch 16 | 74 | April 18, 2008 |
| Geology Ch 15 | 51 | April 18, 2008 |
| Geology Ch 14 | 69 | April 18, 2008 |
| Geology Ch 13 | 62 | April 17, 2008 |
| Geology Ch 12 | 59 | April 17, 2008 |
| Geology Ch 11 | 70 | April 16, 2008 |
| Geology Ch 11 | 4 | April 16, 2008 |
| Geology Ch 10 | 48 | March 26, 2008 |
| Geology Ch 9 | 53 | March 26, 2008 |
| Geology Ch 8 | 53 | March 25, 2008 |
| Geology Ch 7 | 45 | March 25, 2008 |
| Geology Ch 6 | 36 | March 25, 2008 |
| Geology Ch 5 | 39 | March 25, 2008 |
| Geology Ch 4 | 35 | March 23, 2008 |
| Geology Ch 3 | 37 | March 23, 2008 |
| Geology Ch 1 | 52 | March 22, 2008 |
| Geology Ch 2 | 76 | March 19, 2008 |