Why You Should Learn HTML5 Now Before It Explodes In Popularity
diygenius.com
diygenius.com
And plenty of people are still using IE8 and Windows XP, and will for the next few years, so I don't think it's really more critical to learn HTML5 than over HTML4. Actually, it's hardly even possible to learn one without the other.
<section> tags have nothing to do with a normal person's understanding of HTML5. :)
I would recommend going a step further and learning Object Oriented HTML5, no point just learning to program in plain HTML5. /s
I need to go spend some time in the angry dome..
This graphic sums up pretty nicely what "HTML5" actually encompasses: http://upload.wikimedia.org/wikipedia/commons/f/f7/HTML5-API...
While I think HTML5 does offer some exciting features, I also think people need to know the differences between what HTML5 is and more importantly, what it is not.
Because even the graphic they show in the article (“HTML5″ is currently the #1 job trend based on the fastest growing keywords found in online job postings...) says just how recruiters and job listings use that specific term. 90% of the time I see that used, it's a keyword as just wanting you to know general HTML, but they use the phrase HTML5 over "HTML" because it sounds better.
For kicks, this site probably marks the biggest confusion that I always hear with HTML5: http://iscss3partofhtml5.com/ spoiler alert: NO.
EDIT: No clue why I'm being down-voted? As the perspective of a front-end designer who just recently was very active in the job market, this was ALWAYS the case. None of the companies were actually using true HTML5 features or wanted to use true HTML5 features, they were just using CSS3 or jQuery. Obviously it was just a recruiter trying to use buzz terms to describe knowing general HTML.