I have to hand it to the guys at The H Open (formally Heise Online Open Source Edition). They have excellent coverage of the latest happenings in FOSS software. They also have great coverage of software releases and break it down to the important new bits. Finally, it is not overburdened with legal BS or thoughtless benchmarks like many other Linux news sites.
In short, the content is very relevant and professional. It is worth picking up their RSS feed.