Personally, I suggest the following two feeds:

CNN Top News: http://rss.cnn.com/rss/edition.rss

Slashdot's main feed: http://rss.slashdot.org/Slashdot/slashdot (Technology news)

"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram