This is really cool. A Canadian company (Teaching Kids News) has created a site populated with current news stories written at grade levels (you can use the tags to find stories for second grade, 8th grade, etc.). Take a look at the tech stories (under science).
The site is looking for donations (this is not one of those ad supported sites). Clearly there is a cost to writing the stories at age-appropriate levels. I remember when schools used to pay for The Weekly Reader. Perhaps schools should invest in this resource to keep it going.