TurboTax continues to take up to $20 off select versions of its online tax-filing software, as listed below. That's tied with our mention from last week and the lowest price we could find by at least $17 for downloads of any versions elsewhere. The deals:
MIT OpenCourseWare still offers 45 online course textbooks and notes for free. That's the most comprehensive selection of free course materials we've seen from MIT, covering a range of subjects. Choose from eBooks on topics such as mechanics, numerical computation, patents, calculus, Chinese, and more.
The National Geographic Store offers The Complete National Geographic for Windows and Mac for $19.99 plus $5.95 for shipping. That's tied with our mention from last week as the lowest total price we've seen for this collection. (It's also a current price low by $10.) This is a complete digital collection of every National Geographic issue from 1888 through 2011 on seven DVD-ROMs.