Actually, there are three bad questions:
What makes these 'bad' questions?
For What are some recent Web programming good practices and standards, it's the textbook definition of Not Constructive. You ask:
Now I am back into development and i want to play catch up. What did i miss?
How would that help other developers? Is that something that can be searched for on Google? I'm guessing you thought Stack Overflow was a discussion forum when you posted this, and then it was closed and deleted and you realized that we're not a forum.
For Why won't these 2 columns align:
This isn't an awful question, but it's not a really searchable question either. Trimming down some non necessary HTML and CSS would help it be a better question, but this could use a title makeover in order to be upvoted. Maybe something like?
How do I align two columns using CSS?*
*test title, I didn't actually look to see if this is what you are asking
For Best way to build a fluid HTML and CSS page:
You're once again diving into 'not constructive' territory. The 'best way' is the clue that maybe the question should be focused better. What's best for me is not necessarily best for you. How can we have a definitive answer to 'best'?
Once again, a title change could help your issue, because you're really asking:
How do I build an HTML file so I can change the place where different elements of the page appear simply by switching CSS files?
That's a good question; but we need some sample HTML and CSS to go off of, which you don't provide. It's still open ended, but with the right mixture of HTML, CSS and what you're trying to achieve, it could become focused enough to be answerable.