Here is a decent introduction to the key issues with software patents, delivered by Mark Webbink. Below you'll find some past coverage along with videos that make various points.
It's a timely reminder that the Linux Foundation exists to promote whoever pays the Linux Foundation, even pedophiles and companies that attack the GPL
"Ubuntu" the distro now replaces the GNU components inherited from Debian with a bunch of Microsoft GitHub (proprietary) things that reject reciprocal licences