Throughout this year, market research news has been basically dreary for PCs and PC equipment makers. But, as sales of PCs slip, sales of new-generation devices are rising. Chromebooks, running Google's Chrome OS platform, have been one of the bright spots in the hardware market. Now, school systems around the U.S. are purchasing Chromebooks for students, a trend that Google could subsidize and one that is reminiscent of Apple's strong focus on the education market from years ago. If you stay tuned to news from U.S. school districts, you'll see that school systems are purchasing Chromebooks at a steady clip.