How do the executive actions taken by President Trump compare with those from President Obama? And what’s an executive order versus memorandum?

How do the executive actions taken by President Trump compare with those from President Obama? And what’s an executive order versus memorandum?
For many of the thousands (millions?) planning to march this week, this may be their first protest. These tips are written with novices in mind.
Dutch ruling highlights the perils of “network discrimination” but sidesteps U.S. structural problem of network and entertainment sector consolidation.