I read a bunch of different tech sites, but it my opinion, the most relevant stuff is on HN. It basically aggregates all the best stuff from all the tech publications anyway, so you are probably just as well off in the end. Of course, if you want to read more academic articles per se, stick to the big science publications like Nature, etc.
Here's a list in no particular order:
1) recode
2) pando daily
3) techcrunch
4) techmeme (another good aggregator)
5) Mit tech review
6) New York Times Bits
7) WSJ D
8) CNET
9) Mashable