Primer on software patents for laypeople

Definitely not patentable

VOX (link here) has a decent primer on software patents for the novice.  Not an in-depth analysis by any means, and it does contain a couple of howlers, including my favorite: 

The Federal Circuit has always had a pro-patent bias, and in a series of decisions in the 1990s, it removed all meaningful limits on patenting software.

Yes, that's right, since the '90s (right up to Alice Corp. of course) there were no meaningful limits on patenting software.  None!   No wonder we're in this mess.