There are so many websites, planets, or blogs related to Free Software/Open Source (FLOSS) and GNU/Linux in English. It is difficult for someone to grabs many of their RSS feeds one by one. To solve this, I try to collect many URL of RSS feeds of them here. This is not complete by now (November 15th 2016) but I planned to complete the missing links below as soon as possible. I hope this list helps anyone in free software community worldwide.
Subscribe to UbuntuBuzz Telegram Channel https://telegram.me/ubuntubuzz to get article updates directly.
GNU/Linux Distros Officials
Ubuntu
News (Insights) http://insights.ubuntu.com/feed
News (Fridge) http://feeds.feedburner.com/ubuntu-news
Blog http://blog.canonical.com/feed
Planet http://planet.ubuntu.com/rss20.xml
Askubuntu http://askubuntu.com/feeds
Debian
News https://www.debian.org/News/news
Planet https://www.debian.org/News/news
Projects https://www.debian.org/News/news
Linux Mint
News http://blog.linuxmint.com/?feed=rss2
Development News http://segfault.linuxmint.com/feed
Blog http://blog.linuxmint.com/?feed=rss2
Podcast Articles https://mintcast.org/feed
Podcast Audios https://mintcast.org/category/ogg/feed
Arch Linux
News https://www.archlinux.org/feeds/news
Planet https://planet.archlinux.org/rss20.xml
List of All RSS Feeds https://www.archlinux.org/feeds
Allan McRae http://allanmcrae.com/feed/
Fedora
News https://fedoramagazine.org/feed
Blog http://communityblog.fedoraproject.org/?feed=rss2
Planet http://fedoraplanet.org/rss20.xml
Magazine https://fedoramagazine.org/feed
Slackware
Reddit https://www.reddit.com/r/slackware/.rss
Planet (Indonesia) http://planet.slackware-id.org/atom.xml
Blog https://slackblogs.blogspot.com
Releases http://slackfeeds.sagredo.eu
SBO https://slackbuilds.org/rss/ChangeLog.rss
Alien Bob's Main Package Repository http://slackware.com/~alien/slackbuilds/ChangeLog.rss
Alien Bob's KDE Package http://alien.slackbook.org/ktown/ChangeLog.rss
*) section note: these resources for Slackware are all unofficial. I can only find planet for Slackware from Indonesia.
Funtoo
News http://www.funtoo.org/news/atom.xml
Wiki updates http://www.funtoo.org/api.php?hidebots=1&days=30&limit=50&action=feedrecentchanges&feedformat=rss
Forum updates http://forums.funtoo.org/rss/forums/1-forums-feed
Bug reports https://bugs.funtoo.org/activity?maxResults=10&providers=issues&title=undefined
Planet Larry http://feeds.feedburner.com/planet_larry
Mageia
Mageia Planet https://planet.mageia.org/en/?type=atom10
Mageia Blog http://blog.mageia.org/en/feed
Mageia Forum https://forums.mageia.org/en/feed.php?mode=news
Mageia Mailing List Archive https://ml.mageia.org/l/rss/active_lists?count=20&for=10
GNU/Linux Tutorial Resources
Ubuntu
UbuntuBuzz http://www.ubuntubuzz.com/feeds/posts/default?alt=rss
Webupd8 http://feeds2.feedburner.com/webupd8
OMG! Ubuntu! http://feeds.feedburner.com/d0od
Ubuntu Portal http://feeds.feedburner.com/ubuntuportal
Arch Linux
Allam McRae http://allanmcrae.com/feed/
Arch Linux User http://www.archlinuxuser.com/feeds/posts/default?alt=rss
Archlinux.me http://archlinux.me/feed
Arch Linux Women https://archwomen.org/blog/feed.atom
Slackware
Eric Hameleers http://alien.slackbook.org/blog/feed
Willy Sudiarto Raharjo https://slackblogs.blogspot.com/feeds/posts/default
Ismail http://gnu-linux-slackware.blogspot.com/feeds/posts/default?alt=rss
Debian
Debian Administrator http://www.debian-administration.org/articles.rdf
Debian Tutorials http://www.debiantutorials.com/feed
Debian-Tutorials http://feeds.feedburner.com/LinuxDebianTutorialsDownload
Gentoo
Rich0 Gentoo https://rich0gentoo.wordpress.com/feed
Fitzcarraldo https://fitzcarraldoblog.wordpress.com/feed
Hanno Boeck https://blog.hboeck.de/feeds/index.rss2
Tim Boudreau https://timboudreau.com/blog/rss
Gentoo Blog Deutsch https://gentoo-blog.de/feed
Brix Andersen https://blog.brixandersen.dk/feed
Fedora
GoFedora https://gofedora.com/feed
Fedora Users (Germany) http://www.fedorausers.de/aggregator/rss/5
KPARL's Fedora Blog https://kparal.wordpress.com/feed
Nardasev https://nardasev.wordpress.com/feed
Christian Schaller https://blogs.gnome.org/uraeus/feed
Main Organizations
FSF
FSF News https://static.fsf.org/fsforg/rss/news.xml
FSF Planet http://www.planet.gnu.org/rss20.xml
FSF Events https://static.fsf.org/fsforg/rss/events.xml
OSI
OSI News https://opensource.org/news.xml
Important Organizations
GNU Project http://planet.gnu.org/rss20.xml
Software Freedom Conservancy News https://sfconservancy.org/feeds/news
Software Freedom Conservancy Blog https://sfconservancy.org/feeds/blog
EFF https://www.eff.org/rss/updates.xml
FFII https://blog.ffii.org/tag/press/feed
Defective by Design http://defectivebydesign.org/blog/feed
FSF India http://fsf.org.in/news/RSS
FSFE France http://fsffrance.org/news/fsfe-fr-channel.fr.xml
LibrePlanet Blog https://status.fsf.org/api/statusnet/groups/timeline/393.rss
LibrePlanet Videos https://media.libreplanet.org/atom
GNU/Linux & FLOSS Corporations
Canonical http://blog.canonical.com/feed
Red Hat http://redhatstackblog.wordpress.com/feed
Red Hat http://developers.redhat.com/blog/feed
Red Hat OpenShift Blog https://blog.openshift.com/feed
SUSE https://www.suse.com/communities/blog/feed
KDAB https://www.kdab.com/category/blogs/feed
General GNU/Linux News
Distrowatch http://distrowatch.com/news/dw.xml
Distrowatch New Distros http://distrowatch.com/news/dwd.xml
Distrowatch New Packages http://distrowatch.com/news/dwp.xml
LWN http://lwn.net/headlines/newrss
Softpedia http://news.softpedia.com/newsRSS/Linux-7.xml
ZDNet Linux Section http://www.zdnet.com/topic/linux/rss.xml
Techrights http://techrights.org/feed
Muktware http://www.muktware.io/feed
LinuxScoop http://linuxscoop.com/feed/rss
ItsFOSS http://feeds.feedburner.com/ItsFoss
Phoronix http://www.phoronix.com/rss.php
Opensoource.com https://opensource.com/feed
General GNU/Linux Tutorials
Debian Administration http://www.debian-administration.org/articles.rdf
Howtoforge https://www.howtoforge.com/feed
Howtogeek http://feeds.howtogeek.com/howtogeek
Everyday Linux User http://feeds.feedburner.com/everydaylinuxuser/WLlg
Tecmint http://feeds.feedburner.com/tecmint
Xmodulo http://xmodulo.com/feed
NixCraft http://www.cyberciti.biz/nixcraft-rss-feed-syndication
Hardware Resources
H-Node (by FSF) https://h-node.org/rss/modifications/en
Linaro https://www.linaro.org/feed
OpenPrinting http://forums.freestandards.org/rss.php?21
Kernel Resources
Linux Foundation (Blog) https://www.linux.com/feeds
The Linux® Project https://www.kernel.org/feeds/all.atom.xml
Kernel Newbie's Podcast http://podcasts.jonmasters.org/kernel/kernel.xml
Planets
Debian Planet http://planet.debian.org/rss20.xml
Ubuntu Planet http://planet.ubuntu.com/rss20.xml
Arch Linux Planet https://planet.archlinux.org/rss20.xml
Fedora Planet http://fedoraplanet.org/rss20.xml
Gentoo Planet https://planet.gentoo.org/rss20.xml
GNU Planet http://planet.gnu.org/rss20.xml
FSFE Planet http://planet.fsfe.org/en/rss20.xml
Desktop Environment Resources
KDE https://dot.kde.org/rss.xml
GNOME https://www.gnome.org/feed
XFCE http://www.xfce.org/feed?lang=en
LXDE http://lxde.org/rss/index.xml
Unity http://design.canonical.com/feed
Cinnamon http://segfault.linuxmint.com/feed
MATE http://mate-desktop.com/rss.xml
Budgie https://solus-project.com/categories/budgie/index.xml
Software Packages Resources
Ubuntu Official Packages Updates (trusty) http://packages.ubuntu.com/trusty/main/newpkg?format=rss
Ubuntu Official Packages Updates (xenial) http://packages.ubuntu.com/xenial/main/newpkg?format=rss
Ubuntu Official Packages Updates (yakkety) http://packages.ubuntu.com/yakkety/main/newpkg?format=rss
Ubuntu Official Packages Updates (zesty) http://packages.ubuntu.com/zesty/main/newpkg?format=rss
UbuntuUpdates.org's Packages Changelogs http://www.ubuntuupdates.org/packages/latest_logs?dist=all%20releases&noppa=0&format=atom
UbuntuUpdates's PPAs http://www.ubuntuupdates.org/ppas.atom
Shell Resources
Bash One Liners http://www.bashoneliners.com/oneliners/feeds/oneliner
Command Line Fu http://feeds2.feedburner.com/Command-line-fu
StackOverflow bash http://stackoverflow.com/feeds/tag?tagnames=bash&sort=newest
Video Editing Resources
PiTiVi http://pitivi.org/planet/rss20.xml
PiTiVi Blog https://pitivi.wordpress.com/feed
Kdenlive https://kdenlive.org/feed
Cinelerra https://makefx.wordpress.com/feed
Multimedia in general http://multimedia-linux-blog.de/en/feed
Magazines
Full Circle Magazine http://fullcirclemagazine.org/feed
GIMP Magazine http://gimpmagazine.org/feed
Fedora Magazine https://fedoramagazine.org/feed
GNU/Linux Mag (France) http://www.gnulinuxmag.com/feed
Podcasts
LinuxScoop (videos) http://linuxscoop.com/feed/rss
LinuxLuddities (OGG) http://feeds.feedburner.com/LinuxLudditesOgg
Sunday Morning Linux Review (OGG) http://smlr.us/?feed=smlr-ogg
Linux Unplugged (OGG) http://feeds.feedburner.com/linuxunogg
The Linux Link Tech Show (OGG) http://www.thelinuxlink.net/tllts/tllts_ogg.rss
FLOSS Weekly http://feeds.twit.tv/floss.xml
Linux Voice (OGG) http://www.linuxvoice.com/podcast_ogg.rss
GoingLinux http://goinglinux.com/articles/subscribe.html
Sixgun's Linux Outlaws http://sixgun.org/feed/gnr
Linux Action Show (OGG) http://feeds2.feedburner.com/TheLinuxActionShowOGG
Everyday Linux Episodes http://elementopie.com/feeds/geekrant/feed.xml
Ubuntu Podcast (OGG) http://feed.ubuntupodcast.org/ogg
Howto Linux (OGG) http://feeds.feedburner.com/HowtoLinuxOgg
MintCast (OGG) https://mintcast.org/category/ogg/feed
Linux in The Ham Sack (OGG) http://lhspodcast.info/category/podcast-ogg/feed
GNU World Order (OGG) http://gnuworldorder.info/ogg.xml
Try GNU + Linux (OGG) http://trygnulinux.com/ogg.rss
Ganasudha Radio Podcast http://tantex.org/podcastgen/feed.xml
Hacker Public Radio (OGG) http://hackerpublicradio.org/hpr_total_ogg_rss.php
LibrePlanet Ontario Canada http://podcasts.libreplanet.ca/PodcastGenerator-master/feed.xml
Kernel Newbie http://podcasts.jonmasters.org/kernel/kernel.xml
Platforms Comparation
Alternativeto http://feeds2.feedburner.com/alternativeto-blog
Free Software Directory (by FSF) New Packages
Free Software Directory (by FSF) New Updates