A couple of weeks ago you had the chance to ask Khan Academy lead developer Ben Kamens about the future of online education and the academy itself. Below you'll find his answers to the questions we sent and a few extra that he found interesting.

Michael J. Ross writes "To modify a digital image, most computer users turn to a GUI-based image processing application, such as Photoshop. However, while Photoshop and many other similar programs can process multiple images in batch mode, they still require manual usage, and thus typically are unable to process images via a command line or within a second application. Those capabilities call for a programmatic digital image manipulation tool such as ImageMagick, which is explored in a relatively new book, The Definitive Guide to ImageMagick." Read the rest of Michael's review.

Bruce Lawson writes "I've read a lot of CSS books, but this one is the one I wished that I'd read when I was learning, and I suspect that other slashdotters may concur. It is firmly pitched at the coder rather than the designer, takes you from CSS virgin to upper intermediate level, with good attention to the process of (re)designing with CSS, legal issues such as Accessibility (section 508), and assumes that you're not scared of mark-up." Lawson offers this disclosure: "I should immediately disclose that I've worked for two different companies that have published the author, Rachel Andrew, but I have no connection with the publishers, or this book." Read on for the rest of his review.

Danny Yee writes: "Last year I reviewed Jakob Nielsen's Designing Web Usability . Read on for my review of his latest book, Homepage Usability." This might make you want to go and revise your own home page.

Young women between the ages of 13 and 30 are pouring online. They're at the heart of the rapidly growing movement of women onto the Net. Political correctness aside, men and women are not alike, at least not online. They may have equal skills, but they choose to do very different things. Along with open source, younger women may trigger another political, media and social transformation in cyberspace.

Matthew Mastracci has sent in the first in a series of features comparing the various productivity type apps under Linux. This week is an application I haven't used since college: Word Processors. Specifically he looks KOffice's KWord and Applixware's ApplixWords. Other word processors (including StarOffice Writer, Corel's WordPerfect 8, AbiWord and KLyX will follow).